BoardConfig: fix offline charging problems

test
charger: use better pictures

taken from oppo_msm8974-common
i9500: use source built wpa/p2p overlays
BoardConfig: clean-up
media_codecs.xml: update and clean-up
i9500: increase ui responsiveness

* lower touchslop, improves scroll response
* speed up the notification shade

Change-Id: I0262a5b359d4298a44bf8211baca13e01fa59535
init.universal5410.wifi.rc: fix-up wifi settings

test
init.universal5410.rc: cleanup & optimizations
i9500: Enable proximity wake option