mmc: sdhci: Clear error interrupt status in CMDQ mode

Any CMD/DAT errors raised using the error interrupt status in
CMDQ mode also needs to be cleared. If this is not cleared,
any error in supported CMDQ CMD's like CMD 44/45/46/47/48 will
cause an interrupt storm.

Change-Id: Ie725bbf1c859a2dc91b64274e05e71328dfeb1b2
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>