FreeBSD_HEAD_i386 - Build #2981 - Fixed

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FreeBSD_HEAD_i386 - Build #2981 - Fixed:

Build information: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/2981/
Full change log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/2981/changes
Full build log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_i386/2981/console

Change summaries:

298722 by jhb:
Adjust prototypes for NUMA-related functions to match the style of the
rest of this file.

298721 by manu:
Add support for the Non-maskable interrupt driver found in the Allwinner A20 and A31 SoCs.
This is normally used for the PMU.

Reviewed by:	andrew
Approved by:	andrew (mentor)
Differential Revision:	https://reviews.freebsd.org/D5663

298720 by jkim:
Fix build without ACPI_DEBUG.

298717 by jhb:
Fix build for systems without PCI_RES_BUS.

Submitted by:	vangyzen

298716 by jkim:
Sort SUBDIR.