hdhomerun plugin code cleanup

executed:
clang-format -i -style=file *.c *.h

.clang-format:
BasedOnStyle: Google
BreakBeforeBraces: Stroustrup
AllowShortIfStatementsOnASingleLine: false
IndentCaseLabels: false
DerivePointerBinding: false
PointerBindsToType: false

Change-Id: Ie054b78745042185a2656ce9269fae81d98205ae
14 files changed