defconfig: kona: Enable dm-crypt driver

Fscrypt used dm-crypt mapped device to encrypt adoptable storage contents
till api level 29. So enable this driver to handle adoptable storage use
cases for upgarade scenario.

Change-Id: I3bffc68caf94f8f35d4153b2b58e97fde0146bc7
Signed-off-by: Neeraj Soni <neersoni@codeaurora.org>