soc: qcom: aop_ddrss_cmds: Add support to send DDRSS cmds to AOP

Introduce a driver to communicate with the AOP to change
the behavior of the DDRSS at boot.

Change-Id: I2f3f3d9fcc582555a4112b68a2ebff38f57b4c35
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>