Set ro.crypto.type even on failure

Move responsibility for setting ro.crypto.type into fs_mgr_mount_all,
so that even if setting up the filesystem fails, the type is set
correctly and so errors are appropriately handled.

Bug: 162289984
Test: simulate a failure and check that it's set.
Change-Id: Ib061a454e7e21d7206c3c1fa8e88e16618099581