[ARM PATCH] 2133/1: params_phys is not available on PXA and apears to be ARCH_RPM specific anyway

Patch from Ian Campbell

Arecent changeset[0] that changed params into an asm function call
broke the PXA build since PXA does not define PARAMS_PHYS therefore
the params_phys variable is never defined and linking arch/arm/boot/compressed/head.S fails.

The function is defined in include/asm-arm/arch-rpc/uncompress.h 
and so I assume it is dependendant on CONFIG_ARCH_RPC. I can't find 
any use of it outside this file.

Signed-off-by: Ian Campbell 

arch/arm/boot/compressed/head.S

@@ -349,11 +349,13 @@ LC0:		.word	LC0			@ r1
 LC1:		.word	reloc_end - reloc_start
 		.size	LC0, . - LC0
 
+#ifdef CONFIG_ARCH_RPC
 		.globl	params
 params:		ldr	r0, =params_phys
 		mov	pc, lr
 		.ltorg
 		.align
+#endif
 
 /*
  * Turn on the cache.  We need to setup some page tables so that we