Make CameraStatus::cameraId to use String16.

Java strings are passed as UTF16 and attempt to pass cameraId
with alpha symbols via CameraStatus leads either to corrupted
or null strings.

Test: build/flash/boot
Test: verified together with ag/1841664 that alpha camera ids
are passed correctly.

Change-Id: Ic6045322137c156aa03bbcdccfe81f8f0ecb0618
1 file changed