x86: wrong register was used in align macro

New ALIGN_DESTINATION macro has sad typo: r8d register was used instead
of ecx in fixup section. This can be considered as a regression.

Register ecx was also wrongly loaded with value in r8d in
copy_user_nocache routine.

Signed-off-by: Vitaly Mayatskikh <v.mayatskih@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/x86/lib/copy_user_64.S

@@ -52,7 +52,7 @@
 	jnz 100b
 102:
 	.section .fixup,"ax"
-103:	addl %r8d,%edx			/* ecx is zerorest also */
+103:	addl %ecx,%edx			/* ecx is zerorest also */
 	jmp copy_user_handle_tail
 	.previous
 

arch/x86/lib/copy_user_nocache_64.S

@@ -32,7 +32,7 @@
 	jnz 100b
 102:
 	.section .fixup,"ax"
-103:	addl %r8d,%edx			/* ecx is zerorest also */
+103:	addl %ecx,%edx			/* ecx is zerorest also */
 	jmp copy_user_handle_tail
 	.previous
 
@@ -108,7 +108,6 @@ ENTRY(__copy_user_nocache)
 	jmp 60f
 50:	movl %ecx,%edx
 60:	sfence
-	movl %r8d,%ecx
 	jmp copy_user_handle_tail
 	.previous