Add the RAM managed by the Multicore Shared Memory Controller (MSMC)
as a mmio-sram node. The 66AK2H SoCs have 6 MB of such memory. Any
specific MSM memory range needed by a software module ought to be
reserved using an appropriate child node.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>