MAINTAINERS: ghes_edac: update pattern

Commit 77c5f5d2f212 ("ghes_edac: Register at EDAC core the BIOS report")
typoed the file pattern.  Fix it.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index 064daa8..141a071 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3034,7 +3034,7 @@
 L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
 S:	Maintained
-F:	drivers/edac/ghes-edac.c
+F:	drivers/edac/ghes_edac.c
 
 EDAC-I82443BXGX
 M:	Tim Small <tim@buttersideup.com>