FreeBSD_HEAD_arm64 - Build #4105 - Fixed

[jenkins-admin at FreeBSD.org]

FreeBSD_HEAD_arm64 - Build #4105 - Fixed:

Build information: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_arm64/4105/
Full change log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_arm64/4105/changes
Full build log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_arm64/4105/console

Change summaries:

307600 by kevlo:
Fix typo in comment.

307598 by jhibbits:
Un-static two local variables in the FPU emulator

Static variables aren't MP-safe, and this was causing bizarre segfaults on a
dual-core e500v2 system (P1022).

Still left is one static variable, which should be moved into the pcb instead,
but as illegal instructions haven't been hit yet, it's lower priority.

MFC after:	1 week

307593 by gonzo:
Move SOC_BRCM_BCM2837 to GENERIC-UP since does not support SMP

307592 by gonzo:
bcm2835_bsc.c should be compiled only if SOC_BRCM_BCM2837 is enabled