net/bnxt: add Truflow flush-timer to alloc table scope

net/bnxt: add Truflow flush-timer to alloc table scope

Updated the params list to include flush timer, this will
allow users to set the HW flush timer value in 10th of second.
Setting 0 will disable the pending cache flush feature.

Signed-off-by: Shahaji Bhosle <sbhosle@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: Ajit Khaparde <ajit.khaparde@broadcom.com>