InCallUI: Flip to Mute/Reject Call cleanup: fix ITelephony access

Using reflection to access ITelephony is a strange idea.

Change-Id: Ia34b135460cc2b85fbd5db4585228a015c2a52b1
InCallUI: Set Ticker to contact

Display contact/number/confrence
	in notification ticker

PS2:
Implement Kufikugel's suggestion.
	Incoming call ticker only

Change-Id: Ie89cceb67aecbf3dd15abd07dc35110f7fddc2f9
[1/2] InCallUI: unify flip action handler

We cannot share the code since DeskClock is only using
the app API but we can at least share the file.

PS2
NPE derp

Change-Id: I1c5bfc36c18d00f91dcb5d2dcfe646543efdb205