arch: arm: omap4: bump 307MHz GPU to 384MHz without increasing the voltages and add an extra OPP with 512MHz to compensate for the weak GPU and low memory bandwidth, which is, in this device's case, its major bottleneck.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
DPLL_CORE_M6_OPP100_RATE should be 266666666 -  from Ezekeel

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
OMAPDSS:DISPC: Gamma feature implementation

I think this code needs more work: beta in leanKernel for now.

This patch enables the gamma table to be loaded. Gamma value
can range from 0.2 to 2.0 in steps of 0.2 and thus they have
indices from 1 to 10 correspondingly. To disable gamma, value
shall be set to zero. The different values of gamma can also
be used to alter the brightness level of image.

Change-Id: I212a33f5b87c6510ba36720594378affa9ed5bba
Signed-off-by: Sujeet Barnawal <s-baranwal@ti.com>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>