.capex is a container

.capex should be handled as a container when generating NOTICE.

Bug: n/a
Test: Presubmits
Change-Id: Ief4b0a8d18d52ff6510521e0a2b1f4588e259a75
diff --git a/android/license_metadata.go b/android/license_metadata.go
index eabb1b1..0cb6c96 100644
--- a/android/license_metadata.go
+++ b/android/license_metadata.go
@@ -195,7 +195,7 @@
 
 	for _, path := range paths {
 		switch path.Ext() {
-		case ".zip", ".tar", ".tgz", ".tar.gz", ".img", ".srcszip", ".apex":
+		case ".zip", ".tar", ".tgz", ".tar.gz", ".img", ".srcszip", ".apex", ".capex":
 			return true
 		}
 	}