m68k: Add missing I/O macros {in,out}{w,l}_p() for !CONFIG_ISA

On m68k, I/O macros like inb() outw() etc. are only defined to
something useful if CONFIG_ISA is set; dummies are in place if
not, but four macros were missing from the !CONFIG_ISA case.
Adding these makes some drivers, such as speakup, compile again.
Signed-off-by: Thorsten Glaser <tg@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

arch/m68k/include/asm/io_mm.h

@@ -250,9 +250,13 @@ static inline void isa_delay(void)
 #define outb(val,port)     ((void)0)
 #define outb_p(val,port)   ((void)0)
 #define inw(port)          0xffff
+#define inw_p(port)        0xffff
 #define outw(val,port)     ((void)0)
+#define outw_p(val,port)   ((void)0)
 #define inl(port)          0xffffffffUL
+#define inl_p(port)        0xffffffffUL
 #define outl(val,port)     ((void)0)
+#define outl_p(val,port)   ((void)0)
 
 #define insb(port,buf,nr)  ((void)0)
 #define outsb(port,buf,nr) ((void)0)