core: user_ta.c: promote panic message on abort from DMSG to EMSG_RAW

When an abort condition happens in a TA (data abort, undefined
instruction abort, etc.):
- A register dump is printed by the TEE core,
- Then the memory mappings and the call stack is displayed by ldelf,
- Finally the panic code is printed by the TEE core.

All the messages use the ERROR severity except the last one which is
DEBUG. Therefore, switch from DMSG() to EMSG_RAW() for consistency with
the register dump code.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>

core/kernel/user_ta.c

@@ -201,8 +201,7 @@ static TEE_Result user_ta_enter(struct ts_session *session,
 
 	if (utc->ta_ctx.panicked) {
 		abort_print_current_ts();
-		DMSG("tee_user_ta_enter: TA panicked with code 0x%x",
-		     utc->ta_ctx.panic_code);
+		EMSG_RAW("TA panicked with code 0x%x", utc->ta_ctx.panic_code);
 		res = TEE_ERROR_TARGET_DEAD;
 	} else {
 		/*