mmc: cmdq: disable bkops exception for auto bkops

The bkops exception handling will ignore cases when
auto bkops is enabled. As such, limiting the enablement
of the exception in cmdq mode to when manual bkops is
enabled yet auto bkops is not.

Change-Id: Icc158cf2c7a2dda6e8b9f1eee8a5924e14330d1f
Signed-off-by: Dov Levenglick <dovl@codeaurora.org>