drivers: mmc: Add missing response type for some commands
drivers: mmc: Add missing response type for some commands

Add missing response type for SWITCH command and STOP_TRANSMISSION
so that controller can be configured accordingly.

[bod: ported this change from Jun's eMMC patches to the MMC driver]

Signed-off-by: Jun Nie <16d8bc3f29c489fdc436b48884adedee8c6f9a7b@linaro.org>
Signed-off-by: Bryan O'Donoghue <165dc05575478af93ac2f97f67be6e1756010094@linaro.org>

achingupta/arm-trusted-firmware,achingupta/arm-trusted-firmware