SPL: Enable YMODEM support on BeagleBone and AM335x EVM

Cc: Chandan Nath <chandan.nath@ti.com>
Tested-by: Tom Rini <trini@ti.com>
Signed-off-by: Matt Porter <mporter@ti.com>

include/configs/am335x_evm.h

@@ -145,6 +145,7 @@
 #define CONFIG_SPL_LIBDISK_SUPPORT
 #define CONFIG_SPL_LIBGENERIC_SUPPORT
 #define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_YMODEM_SUPPORT
 #define CONFIG_SPL_LDSCRIPT		"$(CPUDIR)/omap-common/u-boot-spl.lds"
 
 /*