ARM: dts: Use ti,pbias compatible string for pbias

Use platform specific compatible strings instead of the common
"ti,pbias-omap" compatible string.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 5d65db9..d1bf0b7 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -122,7 +122,7 @@
 					#size-cells = <1>;
 
 					pbias_regulator: pbias_regulator {
-						compatible = "ti,pbias-omap";
+						compatible = "ti,pbias-dra7", "ti,pbias-omap";
 						reg = <0xe00 0x4>;
 						syscon = <&scm_conf>;
 						pbias_mmc_reg: pbias_mmc_omap5 {