In-Call UI from blue to white

we changed the default dialpad from blue to white
but forgot this in call dialpad,
make it white ui to be consistent

Change-Id: Ie715340d69adb1514e5f1d5bb159b8c42494015a
changing the in call color from semitransparent to semi grey
Merge branch 'test' into kk
Revert "InCallUI: fix non intrusive incallui layout"

This reverts commit 6e064357dc4d00fa9fdd7fe42a88ad9f33473e53.
Revert "[3/3] InCallUI: allow disabling non intrusive incall ui"

This reverts commit d50f375f0c1dd3eab196a2d8cbdc524cf0067c6f.
Revert "[1/2] InCall: Add a non-intrusive dialog for incoming calls"

This reverts commit 6048224570612866746980f64f56782dfc4da618.