[redhat] Enable CONFIG_CRYPTO_CFB=y so cfb(aes) is available in FIPS mode

Currently the CFB algo is built as a module in Fedora and is not build in
ARK. This results in a panic while booting in a FIPS mode:

[ 3.347092] alg: skcipher: failed to allocate transform for cfb(aes): -2
[ 3.347918] Kernel panic - not syncing: alg: self-tests for cfb(aes) (cfb(aes)) failed in fips mode!

Fix this by embedding the CFB code into a kernel, the same way as CTS and
CBC algos already do. The reason why the CFB code is embedded and is not
built as a module is that dracut must add the module to an initramfs image.
This is not always the case.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1915290
Signed-off-by: Vladis Dronov vdronov@redhat.com