hci: Apply clang-format

Remove double asterisks:
  cd hci/
  find . | grep "\.cc\|\.h\|\.c" | \
     xargs -I REPLACE sed 's/^[*][*]/ \*/' -i REPLACE

Run clang-format:
  find . | grep "\.cc\|\.h\|\.c" | xargs -I REPLACE \
     clang-format --style=file -i REPLACE

Test: mma -j32
Change-Id: Ie74244127c8a264dd087d199155274d4655ccf65