dts: bindings: add ST STM32 AES accelerator

This commit adds bindings for the STM32 AES accelerator.
Common properties of st,stm32-cryp are moved into
st,stm32-crypto-common.yaml.

The accelerator supports ECB, CBC, CTR, GCM, GMAC, and CCM
chaining modes.
128 bit bit data blocks with cipher key lengths of 128 and 256 bit are
supported.

Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>