Revert "Revert "bp2build: convert host & prebuilt header libraries""

This reverts commit 105deedfc7.

Reason for revert: Revert with forward fix

Change-Id: Ib0b6f6b1cbb011b4c5f2133e1cc15ec76ff29253

cc/library_headers.go

@@ -104,6 +104,8 @@ func LibraryHeaderFactory() android.Module {
 func prebuiltLibraryHeaderFactory() android.Module {
 	module, library := NewPrebuiltLibrary(android.HostAndDeviceSupported, "")
 	library.HeaderOnly()
+	module.bazelable = true
+	module.bazelHandler = &ccLibraryBazelHandler{module: module}
 	return module.Init()
 }