[ARM] 3272/1: fix kernel decompressor crash

Patch from Nicolas Pitre

Commit f4619025a51747a3788fd1bb6bdc46e368a889a7 broke the kernel
decompressor (at least on PXA).  Here's the fix.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index aaa4740..db3389d 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -334,7 +334,7 @@
 		mov	r1, #0x12
 		orr	r1, r1, #3 << 10
 		add	r2, r3, #16384
-1:		cmp	r1, r8			@ if virt > start of RAM
+1:		cmp	r1, r9			@ if virt > start of RAM
 		orrhs	r1, r1, #0x0c		@ set cacheable, bufferable
 		cmp	r1, r10			@ if virt > end of RAM
 		bichs	r1, r1, #0x0c		@ clear cacheable, bufferable