ti_omap5_common: Find right dtb file for DRA72-RevC Evm

DRA72-Evm revC uses dra72-evm-revc.dtb. Update the same in env vatiables.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/include/configs/ti_omap5_common.h b/include/configs/ti_omap5_common.h
index 2e4c8e9..3589cdc 100644
--- a/include/configs/ti_omap5_common.h
+++ b/include/configs/ti_omap5_common.h
@@ -100,6 +100,8 @@
 			"setenv fdtfile omap5-uevm.dtb; fi; " \
 		"if test $board_name = dra7xx; then " \
 			"setenv fdtfile dra7-evm.dtb; fi;" \
+		"if test $board_name = dra72x-revc; then " \
+			"setenv fdtfile dra72-evm-revc.dtb; fi;" \
 		"if test $board_name = dra72x; then " \
 			"setenv fdtfile dra72-evm.dtb; fi;" \
 		"if test $board_name = beagle_x15; then " \