selinux: Added GNU chcon and ls
selinux: Added GNU chcon and ls

chcon is needed to relabel the filesystem on first boot.  GNU ls has the
-Z option which is useful for seeing the context of the files.

Signed-off-by: Brandon Reid <da0ab5d69d8280095c058423448588ecf68d8eab@ni.com>
Signed-off-by: Ben Shelton <873d2944fc7a954ed322314738197137e10de387@ni.com>
Acked-by: Ken Sharp <e6c8ad8f54d15df4645e8aaf3f7a209bc3688570@ni.com>
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Natinst-ReviewBoard-ID: 77864

ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt