K 10
svn:author
V 4
manu
K 8
svn:date
V 27
2016-08-19T18:02:36.189221Z
K 7
svn:log
V 410
Keep boot parameters in ARM trampoline code

Currently boot parameters (r0 - r3) are forgotten in ARM trampoline code.
This patch save them at startup and restore them before jumping into kernel
_start() routine.
This is usefull when booting with Linux ABI and/or custom bootloader.

Submitted by:	Grégory Soutadé <soutade@gmail.com>
Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D7395

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