mmc: card: Fix packing control unit-tests

In case of TEST_PACKING_NOT_EXP_LESS_THAN_TRIGGER_REQUESTS and
TEST_PACKING_NOT_EXP_TRIGGER_REQUESTS packing is not expected and
the packing statistics array should not be updated.
Updating the array caused a memory corruption due to negative value
of num_packed_reqs

CRs-fixed: 379611
Change-Id: Ic57ff2bdb591603d2af5a87d5d36133f576e3bff
Signed-off-by: Maya Erez <merez@codeaurora.org>
1 file changed