Fix the maximum frequency value calculation am: 70da3cc0a1 am: 85662b8f9c

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2046280

Change-Id: Ia65603793ce1803e2d5d0d7c0f881e6bfecb9e16
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>