This change adds callback to evaluate presence of contaminant in the TCPCI layer. Bug: 215766959 Change-Id: I11331e7f058d3fe81f2038d27905d76b6b9335ac Signed-off-by: Badhri Jagan Sridharan <badhri@google.com> Link: https://lore.kernel.org/r/20230114093246.1933321-2-badhri@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit abc028a270f47f86060ef479395d1bb8c2ab6e7e)
