sdk: Use BluetoothManager.getAdapter()

* BluetoothAdapter.getDefaultAdapter() is deprecated since sdk 31
* Also fixes wrong naming for mBluetoothAdapter which was local
  and thus didn't need the prefix "m"

Change-Id: I003fe06fbd8958cde0fdd71d61710272e32a2ca5
1 file changed
tree: c3dcbd9afd08e8ef3ca47bf1d77b055c47c60ac3
  1. lib/
  2. LICENSES/
  3. lineage/
  4. packages/
  5. sdk/
  6. Android.bp
  7. REUSE.toml