add vulkan-validation-layers
BUG: 27963162
diff --git a/default.xml b/default.xml
index 74a6763..38d5649 100644
--- a/default.xml
+++ b/default.xml
@@ -305,6 +305,7 @@
   <project path="external/vboot_reference" name="platform/external/vboot_reference" groups="vboot" />
   <project path="external/vixl" name="platform/external/vixl" groups="pdk" />
   <project path="external/vogar" name="platform/external/vogar" groups="pdk" />
+  <project path="external/vulkan-validation-layers" name="platform/external/vulkan-validation-layers" />
   <project path="external/webp" name="platform/external/webp" groups="pdk,qcom_msm8x26" />
   <project path="external/webrtc" name="platform/external/webrtc" groups="pdk" />
   <project path="external/wpa_supplicant_8" name="platform/external/wpa_supplicant_8" groups="pdk" />