switch to new power modes
ramdisk: connection tracker permissions
m7-common: properly route speaker for regular VOIP playback

Change-Id: I023dbe2ee88afd3e137bc8491e73708d7f1ad7d1
m7: Add "length" parameter for /data partition

* Required for "footer" style encryption.
fixup identification
update system properties
define TARGET_USES_POST_PROCESSING
remove new ion flag, now set from default