[akita] Define CAMERA_MULTICAM_BOOST

This CL defines CAMERA_MULTICAM_BOOST (with the same settings as the
existing CAMERA_ZOOMING_BOOST). Having both definitions is necessary to
be able to transition from zooming boost to multicam boost. Once the
multicam boost flag is fully rolled out, we can remove the
CAMERA_ZOOMING_BOOST.

Bug: 347829135
Test: adb logcat
Flag: EXEMPT resource file only change
Change-Id: I89f58da3836001f6dd5e566eb1520e785ac8f3de
1 file changed