ti: k3: drivers: ti_sci: Put sequence number in coherent memory
ti: k3: drivers: ti_sci: Put sequence number in coherent memory

The current message sequence number is accessed both with caches on and
off so put this memory in the un-cached coherent section so accesses
are consistent and coherency is maintained.

Signed-off-by: Andrew F. Davis <a6dfde0ec5c5124d26ab0cb4f9ab9a758dee1d6f@ti.com>
Change-Id: Ieeefefeaffc691e4e4c4de7c74490d50ff9de807

achingupta/arm-trusted-firmware,achingupta/arm-trusted-firmware