omap3: Define GFX_DIV values for OMAP34xx and OMAP36xx
This patch updates the clock dividers for the graphics
processor.
It is based on commit:
c4e1d9b
at http://arago-project.org/git/projects/?p=u-boot-omap3.git
Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>