hammerhead: Update build fingerprint and description to KTU84P

Change-Id: Idf7b0bf26acddc7333ce23322be468473c4fc626
hammerhead: Reconfigure sync freq feature

Now that interactive is working properly, there is no
need for overly aggressive cpu freqs. Also, remove
the unused config for target loads.

Change-Id: I36e2fecfc24f0dd7da8224638a902d2c3be83b47
hammerhead: Use less aggressive mount options

 * Reduce potential for FS corruption

Change-Id: I732ac0b4f91d7361a968e26e47ad3c02b2283c46
hammerhead: Optimize I/O scheduling

Inspired by bacon. We aren't suffering from slowdowns
during bootanim, anyway this is the right way to do it.

Change-Id: Icf3d9d6e52926012a4b7fdfdc1456a37ad782e71
hammerhead: Tone down input boost

This is more than enough now and keeps L2 b/w low. Also,
put back target loads.

Change-Id: I993db38fe03f85cf1f011362398f99563b25158c
HammerHead : Add proximity wake flag

Change-Id: I78e677b20a03977d8180726dc64283658ce9c5f9
hammerhead: Fix bluetooth UART device perms

Change-Id: I19b636709b7172e66372faaa28e2b3c4c224621f
hammerhead: Make audio not suck anymore.

 * Add support for additional low-power offload modes
 * Enable gapless playback support
 * Enable 24-bit playback
 * Enable the compander for increased dynamic range on headphones
   and speaker output

Change-Id: If8cae7e940ba753d8b155017b15239bb49616b72
hammerhead: Make proximity check opt-in

This function's behavior is annoying and can even be
a deal-breaker for new or undiscerning CM users.

Change-Id: I51e43fd2adeaab79e74541fafadac95e16b267ff
hammerhead: Disable interactive sync feature

Change-Id: Ic2cef92fa48bc8822dffb7199895ff24cb8bc0ec
hammerhead: Set volume last to avoid pops on speaker

Change-Id: I11b3d3c41f014628ac5899d3a3bfea1b7937d7bc
hammerhead: lcd_kcal: remove control bit

Change-Id: Iba8dfd157406bbdeb0421e30c7dc495a0d377d0c
hammerhead: Update IPC router security configuration

Change-Id: Ia89a4920e07d5790cbd3dde9780349dc42f241e6
hammerhead: Add qcom perf library, update mpdecision

Also, remove a deprecated flag.

Change-Id: I196ef162ecec37befaac6d3b041a4400474361a6
Permit install on bootloader HHZ12d

(Lollipop preview installs HHZ12d)

Change-Id: Ic69124b59e99244e3b82788c5c3a712421d7ce42