Rename FIRST_SDK_INT to DEVICE_INITIAL_SDK_INT

As API review feedback, rename Build#VERSION#FIRST_SDK_INT to
Build#VERSION#DEVICE_INITIAL_SDK_INT. As well as update all usage
in frameworks and tests.

Bug: 184735771
Test: m
Change-Id: I72660959cb4e638a8e80fcf2f4e96ea172969f44
1 file changed
tree: 99335fb40be41a4336b17af9a71e670adc4bda1a
  1. core/
  2. services/