feat(versal-net): add support for IPI

Add support to send IPI to firmware.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Akshay Belsare <Akshay.Belsare@amd.com>
Change-Id: I8cd54c05b6a726e0d398dfc1cdcc7f4cf09ba725