Add vintf_fragments.

Bug: 66917623
Test: fragments are loaded in the right place
Test: boot device which is depending on fragments
Test: androidmk file which uses LOCAL_VINTF_FRAGMENTS properly
    converted
Change-Id: I366b731cf8d5ecf51851866f441ff1c517da75cf
diff --git a/android/androidmk.go b/android/androidmk.go
index 0ea7564..ebed05f 100644
--- a/android/androidmk.go
+++ b/android/androidmk.go
@@ -227,6 +227,9 @@
 		if len(amod.commonProperties.Init_rc) > 0 {
 			fmt.Fprintln(&data.preamble, "LOCAL_INIT_RC := ", strings.Join(amod.commonProperties.Init_rc, " "))
 		}
+		if len(amod.commonProperties.Vintf_fragments) > 0 {
+			fmt.Fprintln(&data.preamble, "LOCAL_VINTF_FRAGMENTS := ", strings.Join(amod.commonProperties.Vintf_fragments, " "))
+		}
 		if Bool(amod.commonProperties.Proprietary) {
 			fmt.Fprintln(&data.preamble, "LOCAL_PROPRIETARY_MODULE := true")
 		}