Apply clang-format to Bluetooth related HAL code

- cp system/bt/.clang-format hardware/interfaces/bluetooth/
- modify hardware/interfaces/bluetooth/.clang-format to match context
- find . -type f \( -iname \*.cpp -o -iname \*.h -o -iname \*.cc \) | xargs clang-format --style=file -i

Test: make
Change-Id: I82e4f26e1efeb715aff7de8a15c3db06e02967a4
diff --git a/bluetooth/.clang-format b/bluetooth/.clang-format
new file mode 100644
index 0000000..9564994
--- /dev/null
+++ b/bluetooth/.clang-format
@@ -0,0 +1,20 @@
+#
+# Copyright 2018 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+BasedOnStyle: Google
+CommentPragmas: NOLINT:.*
+DerivePointerAlignment: false
+