opal-gard: add package as part of libflash build

Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
diff --git a/openpower/package/libflash/Config.in b/openpower/package/libflash/Config.in
index 3fb323f..b4f6c7a 100644
--- a/openpower/package/libflash/Config.in
+++ b/openpower/package/libflash/Config.in
@@ -5,5 +5,12 @@
 
 config BR2_PACKAGE_PFLASH
 	bool "pflash"
+	default y if BR2_PACKAGE_LIBFLASH
 	help
 	  Install pflash utility to target
+
+config BR2_PACKAGE_OPAL_GARD
+	bool "opal-gard"
+	default y if BR2_PACKAGE_LIBFLASH
+	help
+	  Install opal-gard utility to target