am33xx: Update DT files, add am335x_gp_evm_config target

- Re-sync DT files for am33xx with Linux Kernel v4.1
- Include DT file now for the "AM335x GP EVM" and build target for it,
  via device tree and DM.
- We only need to provide platform data for UART when OF_CONTROL isn't
  also enabled really.  We can just push GPIO to coming from DT

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 3aaeb6a..ef71ac1 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -52,7 +52,7 @@
 	zynq-zc770-xm011.dtb \
 	zynq-zc770-xm012.dtb \
 	zynq-zc770-xm013.dtb
-dtb-$(CONFIG_AM33XX) += am335x-boneblack.dtb
+dtb-$(CONFIG_AM33XX) += am335x-boneblack.dtb am335x-evm.dtb
 
 dtb-$(CONFIG_ARCH_SOCFPGA) +=				\
 	socfpga_arria5_socdk.dtb			\