fb: force carrier label height on first boot

reported tester issue:
- boot up
- pull down QS before any network action was done
- carrier/wifi label is shown on qs

Expected behaviour: should not show up on QS in any cases

Fix: force hide on first statusbar construct

seems to be in rare cases this update is needed to avoid showing the carrier
label on QS on first boot up and no connection is there hence emergency label
is shown

Change-Id: I72d2ddc7767938dd2ea657bd2d976b945b1f6467