Merge "Update javadoc of TelephonyManager#isModemEnabledForSlot" am: be6e81a4ea am: 621565a21a

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1878022

Change-Id: I447cc7d0863f58f4b56af7cc9ff1acea217d8093