score: add missing #includes

Files that define a global function should #include the
header with its declaration to make sure that the prototypes
do not diverge.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/score/kernel/sys_score.c

@@ -28,6 +28,8 @@
 #include <linux/mman.h>
 #include <linux/module.h>
 #include <linux/unistd.h>
+#include <linux/syscalls.h>
+#include <asm/syscalls.h>
 
 unsigned long shm_align_mask = PAGE_SIZE - 1;
 EXPORT_SYMBOL(shm_align_mask);