fix(mmc): Add a delay before sending status cmd

The SD card is failed after few resets of the icicle kit and is not
ready to receive next command after the SCR register and a minimal
delay is required before sending the next(status) command.

Signed-off-by: Padmarao Begari <padmarao.begari@microchip.com>

baremetal/polarfire-soc-bare-metal-library/src/platform/drivers/mss/mss_mmc/mss_mmc.c

@@ -784,6 +784,7 @@ mss_mmc_status_t MSS_MMC_single_block_read(uint32_t src_addr, uint32_t * dst_add
                 * Ensure no error fields in Card Status register are set and that
                 * the device is idle before this function returns.
                 */
+                mmc_delay(MASK_8BIT);
                 mMMC_ARM_TIMEOUT(mmc_spin_timeout);
                 do
                 {