get_maintainer.pl now properly recognizes that the file in
include/hw/unicore32/ belongs to UniCore32.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>