[ARM] Add memory type based allocation syscalls

Add syscall numbers and syscall table entries for mbind,
set_mempolicy and get_mempolicy.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/include/asm-arm/unistd.h b/include/asm-arm/unistd.h
index 278de61..c49df63 100644
--- a/include/asm-arm/unistd.h
+++ b/include/asm-arm/unistd.h
@@ -355,6 +355,9 @@
 #define __NR_inotify_init		(__NR_SYSCALL_BASE+316)
 #define __NR_inotify_add_watch		(__NR_SYSCALL_BASE+317)
 #define __NR_inotify_rm_watch		(__NR_SYSCALL_BASE+318)
+#define __NR_mbind			(__NR_SYSCALL_BASE+319)
+#define __NR_get_mempolicy		(__NR_SYSCALL_BASE+320)
+#define __NR_set_mempolicy		(__NR_SYSCALL_BASE+321)
 
 /*
  * The following SWIs are ARM private.