board/BuR/common: introduce usage of CONFIG_SYS_GENERIC_BOARD

Signed-off-by: Hannes Petermaier <oe5hpm@oevsv.at>

include/configs/bur_am335x_common.h

@@ -12,6 +12,8 @@
 #ifndef __BUR_AM335X_COMMON_H__
 #define __BUR_AM335X_COMMON_H__
 /* ------------------------------------------------------------------------- */
+#define CONFIG_SYS_GENERIC_BOARD
+
 #define CONFIG_AM33XX
 #define CONFIG_OMAP
 #define CONFIG_OMAP_COMMON