mint: enable 'Eject SD card' option

Change-Id: I6756355e84848527cdcd6971e69a9fad0db5401b
mint: update props file for 4.3 release

Change-Id: Ia9fbc9ad49b507ff5bbabc853eab07332a84af9f
mint: Reorganize proprietary files

Change-Id: Id8d8bdd9b61511bf5008fecfde84f3c6575faf35
mint: update event node of volume keys for new kernel

Change-Id: Ib8abaa26aeff0c54ed3acf87bdfed3273ca576b1