Fixing constraint of statusIcons in large screen shade header

There were two "End" constraints on statusIcons. This mistake didn't show symptoms in LTR layout but broke RTL layout where carrier_group and statusIcons overlapped elements

Fixes: 279552279
Test: CombinedShadeHeaderConstraintsTest
Test: manually verifying large screen header in RTL
Change-Id: I26c76ce8c35e91a0eaeae66f30823cc32ceb1221
Merged-In: I3781c265c7fced21fc4d9554fd4c5f3b003a7924