defconfig: msmkrypton: Enable USB features

Enable USB DWC3 controller and USB features to be used on msmkrypton.
Enable SCSI and DIAG required flags to support the DIAG and MASS
STORAGE function drivers.

Change-Id: Icde46da292531849127bc86f55ec4b699d0c049e
Signed-off-by: Maya Erez <merez@codeaurora.org>