FWB: Network traffic supercharged (1/2)

Bring back AICP kk traffic

Change-Id: Ide3ac899da7632dd1fb3a0615ab9560a4ae6cfd0
systemui: Forward-port notification counters

 * Port from CM11

Change-Id: Id9d0954acffd00bdb470b9eccbdb3b45fbd995c1
MediaMuxer: handle expection for add track

Native addTrack call throws IllegalArgumentException on failure.
Catch this exception in MediaMuxer and throw IllegalArgumentException
that calling function can trap.

Change-Id: I97239ee2272c754ef6d7d54c5a27d1889ac01b80
SystemUI: Remove unnecessary mobile data activity icon update

The unnecessary mobile data activity icon update causes activity
icon is 0 when mobile data is not actually used. As a result, data
icon will not show even if data connected.

As mobile data activity icon has updated in updateDataIcon, do not
update it again in refreshViews. Remove unnecessary mobile activity
indicator icon update.

Change-Id: Ib39c55a39a0623cc9a2d14508d487f86e3a0f82f
CRs-Fixed: 745386
SystemUI: Set zen mode to no interruptions if silent mode is set

When setting ringer mode to silent and current zen mode is off, zen
mode will become priority interruptions mode. As a result, ringer mode
is set to normal mode in updateZenMode.

Set zen mode to no interruptions when ringer mode is set to silent.

CRs-Fixed: 744813

Change-Id: Id104e5473d0e8d624b06dfc9e5dbd8d9f7627b6e