[EXT] please help backporting some patches to stable release 19.11.13

[Tomasz Duszynski]

Hi, 

[...]

> 2ddf4b110c  Tomasz Duszynski common/cnxk: allow changing PTP mode on CN10K

Should not be backported. 

Thanks. 

> ae835aba40  Wei Huang        raw/ifpga: remove virtual devices on close
> 2545683564  Wei Huang        raw/ifpga: unregister interrupt on close
> 1945c64674  Wenwu Ma         app/testpmd: perform SW IP checksum for GRO/GSO packets
> 3e87e12dc8  Wenxuan Wu       net/ice/base: fix build with GCC 12
> 1907ce4bae  Yuan Wang        examples/vhost: fix retry logic on Rx path
> 41f9a1757f  Yuan Wang        net/virtio-user: fix socket non-blocking mode