ARM: extend Code: line by one 16-bit quantity for Thumb instructions

Dump out the following 16-bit instruction to the faulting instruction
in the Code: line.  This allows Thumb-2 instructions to be properly
encoded.
Tested-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/kernel/traps.c

@@ -139,7 +139,7 @@ static void dump_instr(const char *lvl, struct pt_regs *regs)
 	fs = get_fs();
 	set_fs(KERNEL_DS);
 
-	for (i = -4; i < 1; i++) {
+	for (i = -4; i < 1 + !!thumb; i++) {
 		unsigned int val, bad;
 
 		if (thumb)