defconfig: kona: enable UFS command logging

Enable SCSI_UFSHCD_CMD_LOGGING flag in defconfig file. With this enabled,
commands sent through UFS driver shall be logged.

Change-Id: I2f56a97de83e6f6362e8df1c44f547104dcdff85
Signed-off-by: Can Guo <cang@codeaurora.org>