[ARM] Remove the __arch_* layer from uaccess.h

Back in the days when we had armo (26-bit) and armv (32-bit) combined,
we had an additional layer to the uaccess macros to ensure correct
typing.  Since we no longer have 26-bit in this tree, we no longer
need this layer, so eliminate it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S
index 7497393..6b7363c 100644
--- a/arch/arm/lib/copy_from_user.S
+++ b/arch/arm/lib/copy_from_user.S
@@ -16,7 +16,7 @@
 /*
  * Prototype:
  *
- *	size_t __arch_copy_from_user(void *to, const void *from, size_t n)
+ *	size_t __copy_from_user(void *to, const void *from, size_t n)
  *
  * Purpose:
  *
@@ -83,7 +83,7 @@
 
 	.text
 
-ENTRY(__arch_copy_from_user)
+ENTRY(__copy_from_user)
 
 #include "copy_template.S"