trusty:storageproxyd: Fix in_cdb.length setting on send_ufs_rpmb_req

The in_cdb.length (ALLOCATION_LENGTH) must be set in order to send
SECURITY PROTOCOL IN command.

Bug: 143636526
Test: Trusty storage tests
Change-Id: Ie4252e9b19c05825c895ec07f8c9684ae456f6c9
1 file changed