If qualified components not specified, use the one based on board name.

mod_image_for_test.sh

Index: mod_image_for_test.sh
diff --git a/mod_image_for_test.sh b/mod_image_for_test.sh
index 1ea312126b2f2e8f77595265f599e7648907bd9c..dba4b84d038210136fa0e84d01597a63cc43ab00 100755
--- a/mod_image_for_test.sh
+++ b/mod_image_for_test.sh
@@ -28,8 +28,7 @@ DEFINE_boolean installmask $FLAGS_TRUE \
     "Use INSTALL_MASK to shrink the resulting image." m
 DEFINE_integer jobs -1 \
     "How many packages to build in parallel at maximum." j
-DEFINE_string qualdb "/tmp/run_remote_tests.*" \
-    "Location of qualified component file" d
+DEFINE_string qualdb "" "Location of qualified component file" d
 DEFINE_boolean yes $FLAGS_FALSE "Answer yes to all prompts" y
 DEFINE_string build_root "/build" \
     "The root location for board sysroots."
@@ -193,7 +192,7 @@ else
     MOD_FACTORY_ROOT="${GCLIENT_ROOT}/src/scripts/mod_for_factory_scripts"
     # Run factory setup script to modify the image
     sudo GCLIENT_ROOT="${GCLIENT_ROOT}" ROOT_FS_DIR="${ROOT_FS_DIR}" \
-        QUALDB="${FLAGS_qualdb}" \
+        QUALDB="${FLAGS_qualdb}" BOARD=${FLAGS_board} \
         "${MOD_FACTORY_ROOT}/factory_setup.sh"
   fi
 fi