[ARM PATCH] 1893/1: define __ARCH_WANT_SYS_PAUSE for ARM

Patch from Ian Campbell

The recent changeset "Sanitise handling of unneeded syscall stubs" missed

__ARCH_WANT_SYS_PAUSE from include/asm-arm/unistd.h.

include/asm-arm/unistd.h

@@ -454,6 +454,7 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
 #define __ARCH_WANT_SYS_TIME
 #define __ARCH_WANT_SYS_UTIME
 #define __ARCH_WANT_SYS_SOCKETCALL