optee: make read-only array attr static const

Don't populate the read-only array attr on the stack at run
time, instead make it static const.

Signed-off-by: Colin Ian King <coking@nvidia.com>
Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

Author: ColinIanKing

drivers/tee/optee/rpc.c

@@ -43,7 +43,7 @@ static void handle_rpc_func_cmd_i2c_transfer(struct tee_context *ctx,
 	struct i2c_msg msg = { };
 	size_t i;
 	int ret = -EOPNOTSUPP;
-	u8 attr[] = {
+	static const u8 attr[] = {
 		TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_INPUT,
 		TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_INPUT,
 		TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_INOUT,