i9300: Recorded Sound is distorted and crackly.
With value "18" instead "28" we have a good audio recording.

https://jira.cyanogenmod.org/browse/CYAN-6087

Change-Id: If96018c4b19761f35000d47ec2749b8d672cfe86
 i9300: update hardwarekey overlay

config_deviceHardwareKeys=71 (home-1, back-2, menu-4, volume rockers-64)
config_deviceHardwareWakeKeys=65 (only home and volume rockers can wake it)
crDroid'fy
Enable HW keys disabler