[automerger skipped] Update API doc for accidentally exposed...

[automerger skipped] Update API doc for accidentally exposed NETWORK_TYPE_BITMASK_LTE_CA am: 882677a1 -s ours am: d38d0bbb -s ours

am skip reason: Merged-In Id0c521c4fb74eaf7d73deaf122e923f72b924c18 with SHA-1 6b7f9df1 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18322579



Change-Id: I966312742693f74102e55c0c4929cc2874fe0681
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>