[ARM] 4881/1: print unrecognised processor ID as part of failure message

If we fail to boot due to an unsupported processor ID, print the
processor ID as part of the failure message.
Signed-off-by: NLennert Buytenhek <buytenh@marvell.com>
Acked-by: NNicolas Pitre <nico@marvell.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/kernel/head-common.S

@@ -75,8 +75,13 @@ __error_p:
 #ifdef CONFIG_DEBUG_LL
 	adr	r0, str_p1
 	bl	printascii
+	mov	r0, r9
+	bl	printhex8
+	adr	r0, str_p2
+	bl	printascii
 	b	__error
-str_p1:	.asciz	"\nError: unrecognized/unsupported processor variant.\n"
+str_p1:	.asciz	"\nError: unrecognized/unsupported processor variant (0x"
+str_p2:	.asciz	").\n"
 	.align
 #endif