K 10
svn:author
V 8
jhibbits
K 8
svn:date
V 27
2019-02-18T01:57:47.793004Z
K 7
svn:log
V 312
powerpc/boot: Move ubldr to /boot/uboot, and make this a separate filesystem

Summary:
Now that mpc85xx can boot via ubldr, move ubldr to a separate
filesystem, mounted on /boot/uboot, so that a fresh install can boot correctly.

Reviewed By: nwhitehorn
Differential Revision: https://reviews.freebsd.org/D18709

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