android: show when native-code.py is invoked even for non-verbose builds

Change-Id: I176d140bf5efc090c89cbd3a3699a764abf7107a
Reviewed-on: https://gerrit.libreoffice.org/39121Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>

android/source/Makefile

@@ -12,6 +12,7 @@ BOOTSTRAPDIR=../Bootstrap
 include $(BOOTSTRAPDIR)/Makefile.shared
 
 native-code.cxx: $(SRCDIR)/solenv/bin/native-code.py
+	@echo "[build PY ] $@"
 	$< -j -g core -g writer -g calc -g draw -g edit > $@
 
 install: