MdeModulePkg/SdMmcPciHcDxe: Fix PIO transfer mode

Current driver does not support PIO transfer mode for
commands other then tuning. This change adds the code
to transfer PIO data.

Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Marcin Wojtas <mw@semihalf.com>
Cc: Zhichao Gao <zhichao.gao@intel.com>
Cc: Liming Gao <liming.gao@intel.com>

Signed-off-by: Mateusz Albecki <mateusz.albecki@intel.com>
Tested-by: Hao A Wu <hao.a.wu@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>

MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.h

@@ -158,6 +158,9 @@ typedef struct {
   UINT64                              Timeout;
   UINT32                              Retries;
 
+  BOOLEAN                             PioModeTransferCompleted;
+  UINT32                              PioBlockIndex;
+
   SD_MMC_HC_ADMA_32_DESC_LINE         *Adma32Desc;
   SD_MMC_HC_ADMA_64_V3_DESC_LINE      *Adma64V3Desc;
   SD_MMC_HC_ADMA_64_V4_DESC_LINE      *Adma64V4Desc;