armv8: ls1028a: Add secure boot defconfig

Add secure boot defconfig for ls1028aqds and ls1028ardb boards.

Signed-off-by: Yuantian Tang <andy.tang@nxp.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
diff --git a/include/configs/ls1028a_common.h b/include/configs/ls1028a_common.h
index 0db8639..d3d787f 100644
--- a/include/configs/ls1028a_common.h
+++ b/include/configs/ls1028a_common.h
@@ -197,4 +197,8 @@
 #define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS	3
 #define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS	5
 
+#ifdef CONFIG_SECURE_BOOT
+#include <asm/fsl_secure_boot.h>
+#endif
+
 #endif /* __L1028A_COMMON_H */