Blackfin: convert to kbuild asm-generic support

No need for one line header stubs.  Just declare it in Kbuild.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

arch/blackfin/include/asm/Kbuild

 include include/asm-generic/Kbuild.asm
 
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += bugs.h
+generic-y += cputime.h
+generic-y += current.h
+generic-y += device.h
+generic-y += div64.h
+generic-y += emergency-restart.h
+generic-y += errno.h
+generic-y += fb.h
+generic-y += futex.h
+generic-y += hw_irq.h
+generic-y += ioctl.h
+generic-y += ipcbuf.h
+generic-y += irq_regs.h
+generic-y += kdebug.h
+generic-y += kmap_types.h
+generic-y += local64.h
+generic-y += local.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += percpu.h
+generic-y += pgalloc.h
+generic-y += resource.h
+generic-y += scatterlist.h
+generic-y += sembuf.h
+generic-y += serial.h
+generic-y += setup.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += topology.h
+generic-y += types.h
+generic-y += ucontext.h
+generic-y += unaligned.h
+generic-y += user.h
+generic-y += xor.h
+
 header-y += bfin_sport.h
 header-y += cachectl.h
 header-y += fixed_code.h

arch/blackfin/include/asm/auxvec.h

-#include <asm-generic/auxvec.h>

arch/blackfin/include/asm/bitsperlong.h

-#include <asm-generic/bitsperlong.h>

arch/blackfin/include/asm/bugs.h

-#include <asm-generic/bugs.h>

arch/blackfin/include/asm/cputime.h

-#include <asm-generic/cputime.h>

arch/blackfin/include/asm/current.h

-#include <asm-generic/current.h>

arch/blackfin/include/asm/device.h

-#include <asm-generic/device.h>

arch/blackfin/include/asm/div64.h

-#include <asm-generic/div64.h>

arch/blackfin/include/asm/emergency-restart.h

-#include <asm-generic/emergency-restart.h>

arch/blackfin/include/asm/errno.h

-#include <asm-generic/errno.h>

arch/blackfin/include/asm/fb.h

-#include <asm-generic/fb.h>

arch/blackfin/include/asm/futex.h

-#include <asm-generic/futex.h>

arch/blackfin/include/asm/hw_irq.h

-#include <asm-generic/hw_irq.h>

arch/blackfin/include/asm/ioctl.h

-#include <asm-generic/ioctl.h>

arch/blackfin/include/asm/ipcbuf.h

-#include <asm-generic/ipcbuf.h>

arch/blackfin/include/asm/irq_regs.h

-#include <asm-generic/irq_regs.h>

arch/blackfin/include/asm/kdebug.h

-#include <asm-generic/kdebug.h>

arch/blackfin/include/asm/kmap_types.h

-#include <asm-generic/kmap_types.h>

arch/blackfin/include/asm/local.h

-#include <asm-generic/local.h>

arch/blackfin/include/asm/local64.h

-#include <asm-generic/local64.h>

arch/blackfin/include/asm/mman.h

-#include <asm-generic/mman.h>

arch/blackfin/include/asm/msgbuf.h

-#include <asm-generic/msgbuf.h>

arch/blackfin/include/asm/param.h

-#include <asm-generic/param.h>

arch/blackfin/include/asm/percpu.h

-#include <asm-generic/percpu.h>

arch/blackfin/include/asm/pgalloc.h

-#include <asm-generic/pgalloc.h>

arch/blackfin/include/asm/resource.h

-#include <asm-generic/resource.h>

arch/blackfin/include/asm/scatterlist.h

-#ifndef _BLACKFIN_SCATTERLIST_H
-#define _BLACKFIN_SCATTERLIST_H
-
-#include <asm-generic/scatterlist.h>
-
-#endif				/* !(_BLACKFIN_SCATTERLIST_H) */

arch/blackfin/include/asm/sembuf.h

-#include <asm-generic/sembuf.h>

arch/blackfin/include/asm/serial.h

-#include <asm-generic/serial.h>

arch/blackfin/include/asm/setup.h

-#include <asm-generic/setup.h>

arch/blackfin/include/asm/shmbuf.h

-#include <asm-generic/shmbuf.h>

arch/blackfin/include/asm/shmparam.h

-#include <asm-generic/shmparam.h>

arch/blackfin/include/asm/socket.h

-#include <asm-generic/socket.h>

arch/blackfin/include/asm/sockios.h

-#include <asm-generic/sockios.h>

arch/blackfin/include/asm/statfs.h

-#include <asm-generic/statfs.h>

arch/blackfin/include/asm/termbits.h

-#include <asm-generic/termbits.h>

arch/blackfin/include/asm/termios.h

-#include <asm-generic/termios.h>

arch/blackfin/include/asm/topology.h

-#include <asm-generic/topology.h>

arch/blackfin/include/asm/types.h

-#include <asm-generic/types.h>

arch/blackfin/include/asm/ucontext.h

-#include <asm-generic/ucontext.h>

arch/blackfin/include/asm/unaligned.h

-#include <asm-generic/unaligned.h>

arch/blackfin/include/asm/user.h

-#include <asm-generic/user.h>

arch/blackfin/include/asm/xor.h

-#include <asm-generic/xor.h>