drivers: crypto: MEC172x crypto driver supporting hash

Implement zephyr crypto driver hash API's using calls to
MEC172x ROM hash API's. Hardware supports zephyr driver
hash modes: SHA-224, 256, 384, and 512. Driver supports
synchronous (blocking) mode at this time.

Signed-off-by: Manimaran A <manimaran.a@microchip.com>