Rename LevelCalculationMethod Constant

Rename sLevelCalculationMethod to use all
caps because it's a constant.

Bug: 8675309
Test: compilation
Merged-In: I4d5ee54c389f912a229bfd2aa7b1daf37f30b803
Change-Id: I4d5ee54c389f912a229bfd2aa7b1daf37f30b803
(cherry picked from commit 3869cd640313497428b21831b93803efe430273f)
1 file changed