bluetooth/backend-native: Fix inconsistent bracketing and tab-indents

Fixes: 7fd89e49 ("bluetooth: Try to reconnect SCO")
2 jobs for bluetooth-indent in 3 minutes and 24 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Container
passed build-container #14882228

00:00:13

 
  Build
passed build-meson #14882229

00:03:10