dts: stm32g0: add definitions for the aes peripheral

This commit adds dt definitions for the hw aes accelerator
on stm32g0 Series.
The accelertor is available on the following socs:
stm32g041, stm32g061, stm32g081, and stm32g0c1.

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