K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2018-11-12T22:18:11.707977Z
K 7
svn:log
V 455
Fix test-dts{,o} targets

There were two main problems here:

1.) sys/dts/Makefile.inc is not included from various */overlays directories
    by default, only ../Makefile.inc
2.) When shelling out for DTS/DTSO, cwd != .CURDIR, so enumeration always
    failed

These changes allow make test-dts and make test-dtso to function in their
respective directories.

Reviewed by:	manu
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D17961

END