intel_th: pci: Add Emmitsburg PCH support

commit fd73d74a32bfaaf259441322cc5a1c83caaa94f2 upstream.

This adds support for the Trace Hub in Emmitsburg PCH.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable@vger.kernel.org # v4.14+
Link: https://lore.kernel.org/r/20200706161339.55468-4-alexander.shishkin@linux.intel.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>