Merge "Add GERAN to Docstring for PhysicalChannelConfig" am: 9aca73a930 am: 83da6cfd93 am: 1f5211ff51 am: 80893c86ce

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1879179

Change-Id: I205acbcc8ffeb4b466dec71cb396eee62ccce44b