Update extract-files for updated apk entries

* a7ebbbb218ddb9a0102dc46eb1155e0c318f46fe
  'hammerhead: Update makefile generation script'
  added a hyphen in front of the apk entries but
  extract-files.sh was not updated to deal with that,
  breaking the script.
* Make it remove the leading hyphen as well.

Change-Id: I3be3096ca69aeca8303095e88d2a4f2a708fe782
audio_effects: Add stereowide effect

Change-Id: I5238369a4b04d0061b51313a99edb05932fc927b
Enable gcc 4.8

Change-Id: I4fec10e41b2b676b9f70dba9e304e6833735c853
hammerhead: Enable lockscreen rotation

Change-Id: Ie5e2c2598a960140a831d02c000b37630e219665
hammerhead: Set permissions on force_fast_charge node

Change-Id: Ibccf91903595b3146387dd621f1902ab4fc2edf2
Back to gcc 4.7

GCC 4.8 causes a nasty crash when rendering lens blur

Change-Id: I3aea098eeb1aa36fbb6b156dc12982dd13c34c06
Signed-off-by: Evan Anderson <evan@thelinuxman.us>