Bug 540085 - Deadlock in ToolChainManager init

- modify ContainerGCCToolChainProvider.init so that the
  CBuildConfigurationManager.recheckConfigs() call is done
  within a separate job so the init() call will return
  without causing deadlock
- do the same for ContainerTargetTypeProvider
- modify CBuildConfigurationManager initProviders() method to
  be synchronized

Change-Id: I4ca9371fb340887233872b6d315621a24450fb2b
3 files changed