Makefile: make clean target silent

Signed-off-by: Ithamar R. Adema <ithamar@upgrade-android.com>
Makefile: fix typo in parsecfg target

Signed-off-by: Ithamar R. Adema <ithamar@upgrade-android.com>
parsecfg: tune for use by awimage

Signed-off-by: Ithamar R. Adema <ithamar@upgrade-android.com>
.gitignore: add parsecfg

Signed-off-by: Ithamar R. Adema <ithamar@upgrade-android.com>