gpu: pvr: reduce load on SGX MMU to improve stability.
Change-Id: I333d1aa1230b0dc0769602cf857c2fc848601485
Signed-off-by: Simon Wilson <simonwilson@google.com>

Conflicts:
	drivers/gpu/pvr/sgxerrata.h
OMAP4: clock: Extend L3 clock dependencies to cover 4470
Currently L3 OPP50 frequency is hardcoded to 100MHz.
But OMAP4470 has High Performance CORE OPP set where L3 OPP50 is 116MHz.
This patch exetends L3 clock dependencies to cover 4470 HP CORE OPP set.

Assumption made that DDRPHY freq is always 4x L3 freq.

Change-Id: I124b77d797c16ea0ccf32ba7b74a3d1c0bfe1058
Signed-off-by: Taras Kondratiuk <taras@ti.com>