The meshid element is memcpy()'ed into se_meshid if included in either beacon or probe-response frames. Fix the condition by checking for the the array's content instead of the always existing array itself.
The meshid element is memcpy()'ed into se_meshid if included in either
beacon or probe-response frames. Fix the condition by checking for the
the array's content instead of the always existing array itself.

Reviewed by:	rpaulo, stefanf
MFC after:	3 days

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