mmc: cqhci: Fix timing and response type for busy commands

The response type and command timing for busy commands are
set incorrectly due to wrong cmd->flags check. Correct this
to check for MMC_RSP_BUSY flag.

Change-Id: Ia1891273b6dee790e940c291c45bf1682593f3b0
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: Ram Prakash Gupta <rampraka@codeaurora.org>