mmc: host: Handle config dependencies for cqhci crypto

Add and remove the needed depedencies in the cqhci
crypto drivers on the CONFIG_MMC_CQHCI_CRYPTO
config. This is needed to make driver successfully
compile as a module and be gki compatible.
Add module license and module description for
cqhci-crypto and cqhci-crypto-qti drivers.

Change-Id: I0da29a7d19d2f2606f5c85316ab47c6df73e66d7
Signed-off-by: Vaibhav Agrawal <vagrawa@codeaurora.org>