ARM: dts: omap443x: Correct sgx clock to 307.2MHz as used on motorola vendor kernel

The Android vendor kernel uses 307.2MHz or a divider ratio of /5 while active
153600000 or /10 is only used when the sgx core is inactive.
Signed-off-by: Carl Philipp Klemm <philipp@uvos.xyz>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap443x.dtsi

@@ -78,11 +78,11 @@ &cpu_thermal {
 /include/ "omap443x-clocks.dtsi"
 
 /*
- * Use dpll_per for sgx at 153.6MHz like droid4 stock v3.0.8 Android kernel
+ * Use dpll_per for sgx at 307.2MHz like droid4 stock v3.0.8 Android kernel
  */
 &sgx_module {
 	assigned-clocks = <&l3_gfx_clkctrl OMAP4_GPU_CLKCTRL 24>,
 			  <&dpll_per_m7x2_ck>;
-	assigned-clock-rates = <0>, <153600000>;
+	assigned-clock-rates = <0>, <307200000>;
 	assigned-clock-parents = <&dpll_per_m7x2_ck>;
 };