sparc: Merge asm-sparc{,64}/mman.h

Renaming the function sparc64_mmap_check() to
sparc_mmap_check() was enough to make the two
header files identical.

:$ diff -u include/asm-sparc/mman.h include/asm-sparc64/mman.h
:-- include/asm-sparc/mman.h	2008-06-13 06:46:39.000000000 +0200
:++ include/asm-sparc64/mman.h	2008-06-13 06:46:39.000000000 +0200
:@@ -1,5 +1,5 @@
:-#ifndef __SPARC_MMAN_H__
:-#define __SPARC_MMAN_H__
:+#ifndef __SPARC64_MMAN_H__
:+#define __SPARC64_MMAN_H__
:
: #include <asm-generic/mman.h>
:
:@@ -23,9 +23,9 @@
:
: #ifdef __KERNEL__
: #ifndef __ASSEMBLY__
:-#define arch_mmap_check(addr,len,flags)	sparc_mmap_check(addr,len)
:-int sparc_mmap_check(unsigned long addr, unsigned long len);
:+#define arch_mmap_check(addr,len,flags)	sparc64_mmap_check(addr,len)
:+int sparc64_mmap_check(unsigned long addr, unsigned long len);
: #endif
: #endif
:
:-#endif /* __SPARC_MMAN_H__ */
:+#endif /* __SPARC64_MMAN_H__ */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>