Use percentage insets in default Wear app icon

This prevents scaling issues when setting the bounds to low
values.

Bug: 194473271
Test: manually verify in launcher
Change-Id: Idb54da01f73be7e4e46f1feedf0fc4a33c9c0d19
(cherry picked from commit 8a96794ab0f449b9f0216d40c11e5f9fb8329ea3)
1 file changed