[ARM] pxa: add base PXA935 support due to CPUID change

PXA935 has changed its implementor ID from Intel to Marvell, this
patch modifies arch/arm/boot/compressed/head.S and proc-xsc3.S to
support a smooth bootup.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 84a1e04..6066509 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -624,6 +624,12 @@
 		b	__armv4_mmu_cache_off
 		b	__armv4_mmu_cache_flush
 
+		.word	0x56056930
+		.word	0xff0ffff0		@ PXA935
+		b	__armv4_mmu_cache_on
+		b	__armv4_mmu_cache_off
+		b	__armv4_mmu_cache_flush
+
 		.word	0x56050000		@ Feroceon
 		.word	0xff0f0000
 		b	__armv4_mmu_cache_on