sh: Rename opcode_t to insn_size_t.

This is now clashing with a driver, so just rename it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index 438f1eb..46348ed0 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -22,11 +22,11 @@
 
 int is_valid_bugaddr(unsigned long addr)
 {
-	unsigned short opcode;
+	insn_size_t opcode;
 
 	if (addr < PAGE_OFFSET)
 		return 0;
-	if (probe_kernel_address((u16 *)addr, opcode))
+	if (probe_kernel_address((insn_size_t *)addr, opcode))
 		return 0;
 
 	return opcode == TRAPA_BUG_OPCODE;
@@ -66,7 +66,7 @@
 
 #ifdef CONFIG_BUG
 	if (__kernel_text_address(instruction_pointer(regs))) {
-		opcode_t insn = *(opcode_t *)instruction_pointer(regs);
+		insn_size_t insn = *(insn_size_t *)instruction_pointer(regs);
 		if (insn == TRAPA_BUG_OPCODE)
 			handle_BUG(regs);
 	}