defconfig: 8226: add eMMC4.5 unit-tests capabilities

MMC unit-tests are used by the test team to verify the functionality
of eMMC4.5 features.
The unit-tests are disabled by default and do not effect normal
operation.

Change-Id: Id3d255d24f6a8531bba6b8dce1f27faa09744cfc
Signed-off-by: Maya Erez <merez@codeaurora.org>
2 files changed