Change back the TPL of PCD from TPL_CALLBACK to TPL_NOTIFY because the following issue is found: When we manually connect a device path mapping to the serial terminal with non-default band rate, the SerialIo driver would Reinstall its device path protocol eventually causing ConSplitter::DriverBindingStart() to run and finally would call PcdGet32 (PcdConOutColumn) in ConsplitterSetConsoleOutMode(). Since SerialIo driver raises TPL to TPL_NOTIFY initially, the call to PcdGet32 would cause TPL assertion if TPL of PCD is TPL_CALLBACK.
Change back the TPL of PCD from TPL_CALLBACK to TPL_NOTIFY because the following issue is found:
When we manually connect a device path mapping to the serial terminal with non-default band rate, the SerialIo driver would Reinstall its device path protocol eventually causing ConSplitter::DriverBindingStart() to run and finally would call PcdGet32 (PcdConOutColumn) in ConsplitterSetConsoleOutMode().
Since SerialIo driver raises TPL to TPL_NOTIFY initially, the call to PcdGet32 would cause TPL assertion if TPL of PCD is TPL_CALLBACK.

git-svn-id: 5648d1bec6962b0a6d1d1b40eba8cf5cdb62da3d@10188 6f19259b-4bc3-4df7-8a09-765794883524

MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2