Allow late suspend during active call

Audio routing works even if device is suspended and proximity
sensor based transitions are protected by wakelocks, so we do
not need to keep the device in early suspend during active
call anymore.

[mce] Allow late suspend during active call. Fixes JB#11399
Merge pull request #146 from spiiroin/allow_suspend_during_call

Allow late suspend during active call
Send dbus signal if powerkey is pressed during alarm / incoming call

Instead of completely ignoring the power key while there are active
alarms, mce now sends a dbus signal that alarm ui can react to and
for example snooze the alarm.

Similarly mce itself now ignores powerkey during incoming call, but
does send a dbus signal that call ui can react to and for example
silence the ringing.

[mce] Send dbus signal if powerkey is pressed during alarm / incoming call. Fixes JB#17794
[systemd] Fixed mce start dependency. JB#15511

Signed-off-by: Pekka Lundstrom <pekka.lundstrom@jollamobile.com>
Merge pull request #147 from spiiroin/powerkey_signal

Send dbus signal if powerkey is pressed during alarm / incoming call
Merge pull request #148 from nemomobile/plu

[systemd] Fixed mce start dependency. JB#15511
Update header file dependencies
Bump mce version to 1.26.0