omap3:clock: configure GFX clock to 200MHz for AM/DM37x

AM/DM37x is another OMAP3 variant, where the GFX clock has been
boosted to 192MHz/200MHz. So fix the GFX_DIV value for this change.

HW Errata: Due to dependency of TV out clock of 54MHz, it is not
possible to configure GFX to 192MHz. So as per HW errats, the
recommended GFX clock is 200MHz (=CORE_CLK/2).

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/arch/arm/cpu/armv7/omap3/clock.c b/arch/arm/cpu/armv7/omap3/clock.c
index 3d38d08..29ff713 100644
--- a/arch/arm/cpu/armv7/omap3/clock.c
+++ b/arch/arm/cpu/armv7/omap3/clock.c
@@ -399,7 +399,7 @@
 		/* L3 */
 		sr32(&prcm_base->clksel_core, 0, 2, CORE_L3_DIV);
 		/* GFX */
-		sr32(&prcm_base->clksel_gfx,  0, 3, GFX_DIV);
+		sr32(&prcm_base->clksel_gfx,  0, 3, GFX_DIV_36X);
 		/* RESET MGR */
 		sr32(&prcm_base->clksel_wkup, 1, 2, WKUP_RSM);
 		/* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */