powerpc: Fix usage of register macros getting ready for %r0 change

Anything that uses a constructed instruction (ie. from ppc-opcode.h),
need to use the new R0 macro, as %r0 is not going to work.

Also convert usages of macros where we are just determining an offset
(usually for a load/store), like:
	std	r14,STK_REG(r14)(r1)
Can't use STK_REG(r14) as %r14 doesn't work in the STK_REG macro since
it's just calculating an offset.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/lib/copypage_power7.S b/arch/powerpc/lib/copypage_power7.S
index 01e2b5d..a2126ce 100644
--- a/arch/powerpc/lib/copypage_power7.S
+++ b/arch/powerpc/lib/copypage_power7.S
@@ -113,13 +113,13 @@
 #endif
 
 .Lnonvmx_copy:
-	std	r14,STK_REG(r14)(r1)
-	std	r15,STK_REG(r15)(r1)
-	std	r16,STK_REG(r16)(r1)
-	std	r17,STK_REG(r17)(r1)
-	std	r18,STK_REG(r18)(r1)
-	std	r19,STK_REG(r19)(r1)
-	std	r20,STK_REG(r20)(r1)
+	std	r14,STK_REG(R14)(r1)
+	std	r15,STK_REG(R15)(r1)
+	std	r16,STK_REG(R16)(r1)
+	std	r17,STK_REG(R17)(r1)
+	std	r18,STK_REG(R18)(r1)
+	std	r19,STK_REG(R19)(r1)
+	std	r20,STK_REG(R20)(r1)
 
 1:	ld	r0,0(r4)
 	ld	r5,8(r4)
@@ -157,12 +157,12 @@
 	addi	r3,r3,128
 	bdnz	1b
 
-	ld	r14,STK_REG(r14)(r1)
-	ld	r15,STK_REG(r15)(r1)
-	ld	r16,STK_REG(r16)(r1)
-	ld	r17,STK_REG(r17)(r1)
-	ld	r18,STK_REG(r18)(r1)
-	ld	r19,STK_REG(r19)(r1)
-	ld	r20,STK_REG(r20)(r1)
+	ld	r14,STK_REG(R14)(r1)
+	ld	r15,STK_REG(R15)(r1)
+	ld	r16,STK_REG(R16)(r1)
+	ld	r17,STK_REG(R17)(r1)
+	ld	r18,STK_REG(R18)(r1)
+	ld	r19,STK_REG(R19)(r1)
+	ld	r20,STK_REG(R20)(r1)
 	addi	r1,r1,STACKFRAMESIZE
 	blr