[PARISC] Remove sched.h from uaccess.h on parisc

Al Viro did this for x86-64 and reduced the number of dependencies on
sched.h significantly.  We had a couple of files which were relying on
uaccess.h pulling in sched.h, so they need explicit dependencies added.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

arch/parisc/kernel/unaligned.c

@@ -20,8 +20,11 @@
  *
  */
 
+#include <linux/jiffies.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
 #include <asm/uaccess.h>
 
 /* #define DEBUG_UNALIGNED 1 */

arch/parisc/kernel/unwind.c

@@ -10,6 +10,7 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/kallsyms.h>
 

include/asm-parisc/uaccess.h

@@ -4,7 +4,6 @@
 /*
  * User space memory access functions
  */
-#include <linux/sched.h>
 #include <asm/page.h>
 #include <asm/system.h>
 #include <asm/cache.h>