!3093 backport adding GNR support for Intel PCIe gen5 NTB

Merge Pull Request from: @wuzheng_e61f 
 
This patch is to add GNR support for Intel PCIe gen5 NTB.

Intel-kernel issue:
#I8KPHC

Test:
1.Using NTB hardware cards for connecting two GNRs.
2.set the right NTB port for matching the pcie port in BIOS.
3.Afer Intel NTB hardware is ready, please check the following link to test NTB in Linux.
https://github.com/davejiang/linux/wiki/Intel-NTB-Startup-Guide

Known issue:
N/A

If user want to enable this feature, please set the following items of config:
CONFIG_NTB_NETDEV=m
CONFIG_NTB=m
CONFIG_NTB_INTEL=m
CONFIG_NTB_PINGPONG=m
CONFIG_NTB_TOOL=m
CONFIG_NTB_PERF=m
CONFIG_NTB_TRANSPORT=m
 
 
Link:https://gitee.com/openeuler/kernel/pulls/3093

 

Reviewed-by: Jason Zeng <jason.zeng@intel.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Acked-by: Xie XiuQi <xiexiuqi@huawei.com>