Change InCallPresenter to use LogUtil

The old Log class uses the calling class name for the tag. Proguard
minifies class names, making it annoying to figure out which class is
logging in a bugreport. You'd see something like:

06-14 08:50:10.942 10022 20233 20233 I Dialer  : bhp - Phone switching
state: OUTGOING -> OUTGOING

Now you'll see
06-14 08:50:10.942 10022 20233 20233 I Dialer  :
InCallPresenter.onCallListChange - Phone switching state: OUTGOING -> OUTGOING

Test: Code builds, no changes were made to the actual logged strings
PiperOrigin-RevId: 160445433
Change-Id: Id4d07a33b9ec7a9bceca48e71cdcfc5e6291b571