i9100g: Update recovery_keys

Cleanup and update, see: http://review.cyanogenmod.org/62724

Change-Id: Id586a34204a30213f1827adcd7c96f55d5d86d63
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_device_samsung_i9100g into cd-4.4