mmc: mmc: Don't send CMD13 after switch command while switching speed modes

Do not send CMD13 after sending switch command for HS, HS_DDR,
HS200 and HS400 modes. It seems that below problem can occur -
1. After sending switch CMD6, card will switch to mentioned bus speed
mode.
2. At this moment the controller will be in different bus speed mode,
unless the timing of the controller is switched to match with that of
card.

During this time, if CMD13 follows CMD6 to switch the bus speed
mode in card. Then it may cause timeouts or other errors because
of mismatch in timing of controller and card.

Thus send CMD13 to see the status once both controller and card are
switched to same timings.

Change-Id: If796c8cfce2cbdc1bce460460e3276886ae1be0c
Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org>
Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
Signed-off-by: Sayali Lokhande <sayalil@codeaurora.org>