AM35x: Add support for AM3517EVM

This patch adds basic support for the AM3517EVM.
It includes:
	- Board files (.c and .h)
	- Default configuration file
	- Updates for Makefile

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/Makefile b/Makefile
index cedac20..f0a8907 100644
--- a/Makefile
+++ b/Makefile
@@ -3155,6 +3155,9 @@
 ## ARM CORTEX Systems
 #########################################################################
 
+am3517_evm_config :	unconfig
+	@$(MKCONFIG) $(@:_config=) arm arm_cortexa8 am3517evm logicpd omap3
+
 devkit8000_config :	unconfig
 	@$(MKCONFIG) $(@:_config=) arm arm_cortexa8 devkit8000 timll omap3