bios_emulator: Always print errors when opcode decode fails

This is a rare event and should not happen. When it does it is confusing to
work out why. At least we should print a message.

Adjust the emulator to always print decode errors to the console.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/bios_emulator/x86emu/ops2.c b/drivers/bios_emulator/x86emu/ops2.c
index 59dbb42..be4ef36 100644
--- a/drivers/bios_emulator/x86emu/ops2.c
+++ b/drivers/bios_emulator/x86emu/ops2.c
@@ -58,7 +58,7 @@
     u8 op2)
 {
     START_OF_INSTR();
-    DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n");
+    ERR_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n");
     TRACE_REGS();
     printk("%04x:%04x: %02X ILLEGAL EXTENDED X86 OPCODE!\n",
 	M.x86.R_CS, M.x86.R_IP-2,op2);
@@ -1089,7 +1089,7 @@
 	DECODE_PRINTF("BTC\t");
 	break;
     default:
-	DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n");
+	ERR_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n");
 	TRACE_REGS();
 	printk("%04x:%04x: %02X%02X ILLEGAL EXTENDED X86 OPCODE EXTENSION!\n",
 		M.x86.R_CS, M.x86.R_IP-3,op2, (mod<<6)|(rh<<3)|rl);