CameraServiceProxy: Double retry times when notifying cameraserver

Current retry for notifying cameraserver is 20ms * 30 = 600ms. Double it
to 1.2 seconds to give cameraserver enough time to start up.

Test: Build
Bug: 140414594
Change-Id: I5726212d81bb595a99c9137e073f0da022d0779c
1 file changed