sw64: switch to inline _copy_{to,from}_user()

Sunway inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5PN9S

--------------------------------

Switch to inline version of _copy_{to,from}_user() to improve
performance.
Signed-off-by: NMao Minkai <maominkai@wxiat.com>
Signed-off-by: NGu Zitao <guzitao@wxiat.com>

arch/sw_64/include/asm/uaccess.h

@@ -292,6 +292,8 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long len)
 {
 	return __copy_user((__force void *)to, from, len);
 }
+#define INLINE_COPY_FROM_USER
+#define INLINE_COPY_TO_USER
 
 extern long __clear_user(void __user *to, long len);