dra7xx: Add dra74_evm_defconfig using CONFIG_DM

Import various DT files for dra7-evm from Linux Kernel v4.2
Add config file for this board, enable DM and DM_GPIO

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index bdca81b..42aea29 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -74,7 +74,7 @@
 	socfpga_cyclone5_de0_nano_soc.dtb			\
 	socfpga_cyclone5_sockit.dtb			\
 	socfpga_cyclone5_socrates.dtb
-dtb-$(CONFIG_TARGET_DRA7XX_EVM) += dra72-evm.dtb
+dtb-$(CONFIG_TARGET_DRA7XX_EVM) += dra72-evm.dtb dra7-evm.dtb
 dtb-$(CONFIG_TARGET_STV0991) += stv0991.dtb
 
 dtb-$(CONFIG_LS102XA) += ls1021a-qds.dtb \