docs: Typo fix (android.permissions -> android.permission) am: 449b1fa9ec am: 57550c8e5b am: cd2f761e00

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24811684

Change-Id: I32bd82c1afe012b94fff95b1f210e3fcc866c7f5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>