net/bnxt: support WC TCAM shared session

net/bnxt: support WC TCAM shared session

If the session shares WC TCAM entries with others,
specify it in the session name by attach "-wc_tcam".
Firmware will flush the shared WC TCAM entries if
the last shared session using them is closed.

Signed-off-by: Jay Ding <jay.ding@broadcom.com>
Signed-off-by: Randy Schacher <stuart.schacher@broadcom.com>
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Reviewed-by: Mike Baucom <michael.baucom@broadcom.com>
Reviewed-by: Farah Smith <farah.smith@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>