Re: dtc: Fold comment handling test into testsuite

So, like, the other day David Gibson mumbled:

For ages dtc has included a sample dts, comment-test.dts, for checking
various lexical corner cases in comment processing.  In fact, it
predates the automated testsuite, and has never been integrated into
it.  This patch addresses this oversight, folding the comment handling
test in with the rest of the testsuite.

Signed-off-by: David Gibson <redacted>

Applied.

Thanks,
jdl