am33xx/omap: Add a new board to enable verified boot

Enable verified boot functionality for a new am335x_boneblack_vboot target.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index edc5841..5ae8c46 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -25,6 +25,10 @@
 # define CONFIG_OF_CONTROL
 # define CONFIG_OF_SEPARATE
 # define CONFIG_DEFAULT_DEVICE_TREE am335x-boneblack
+# ifdef CONFIG_ENABLE_VBOOT
+#  define CONFIG_FIT_SIGNATURE
+#  define CONFIG_RSA
+# endif
 #endif
 
 #define CONFIG_SYS_BOOTM_LEN		(16 << 20)