refactor(mmc): replace 0 with MMC_RESPONSE_NONE

Use the newly introduced MMC_RESPONSE_NONE macro for Command 0,
where no response is expected.

Change-Id: I861a1bd009ea131677a23e2d94ea27bff3653360
Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index b51e744..93a958c 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -437,7 +437,7 @@
 	int ret;
 
 	/* CMD0: reset to IDLE */
-	ret = mmc_send_cmd(MMC_CMD(0), 0, 0, NULL);
+	ret = mmc_send_cmd(MMC_CMD(0), 0, MMC_RESPONSE_NONE, NULL);
 	if (ret != 0) {
 		return ret;
 	}