FreeBSD_HEAD_i386 - Build #4384 - Fixed

FreeBSD_HEAD_i386 - Build #4384 - Fixed:

Build information: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/4384/
Full change log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/4384/changes
Full build log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/4384/console

Change summaries:

310061 by manu:
Add new compatible string "allwinner,sun7i-a20-mmc".

New upstream DTS is using this now for A20 SoC.

MFC after:	3 days

310058 by hselasky:
Fix initialisation of mlx4_pci_table's .driver_data fields.

MFC after:		1 week
Differential Revision:	https://reviews.freebsd.org/D8791
Sponsored by:		Mellanox Technologies
Submitted by:		Dexuan Cui <decui_at_microsoft.com>

310057 by ed:
Revert accidental change made in r310056.

Because I had to cherry-pick some of my changes in r310051, I
accidentally made a typo when manually applying the rest in r310056.