layerscape: add patches for SFP support on DPAA2 platforms

layerscape: add patches for SFP support on DPAA2 platforms

This is required for managed operation of the SFP ports on
the Ten64 (LS1088A) and other boards.

The two issues resolved are:
- Validation of 10G SFP link modes fail as Linux did not
  consider the equivalence of modes like XFI, 10GBase-R
- Fix a locking issue that prevented the system rebooting
  when SFP ports were controlled by the SFP driver.

Please note, these patches are replaced by upstream ones
in 6.x, see: commit 61ec9a8154a5 ("armvirt: add SFP support
patches for NXP Layerscape DPAA2 platforms") in OpenWrt for
the relevant patches.

Signed-off-by: Mathew McBride <matt@traverse.com.au>