drivers: entropy: Fix MCUX CAAM Entropy

Re-enable the CAAM for entropy
now that the HAL driver has been fixed

Job descriptors must be accessed coherently
between CAAM DMA and core.

The M4 Cores still do not work
because of mpu/cache/kconfig arch complications,
disable caam for M4 cores in DTS

Signed-off-by: Declan Snyder <declan.snyder@nxp.com>