Provider->ProviderBridge
Provider->ProviderBridge

avoid names clashing, gcc 4.8.1 silently used it instead of
statefs::Provider in one place

Signed-off-by: Denis Zalevskiy <43c40921ef02e9bb53daac07eb9ed16452640d88@jolla.com>

android-808/statefs,android-808/statefs,android-808/statefs,android-808/statefs