arm: Handle .gnu.hash section in ldscripts

Avoids "could not find output section .gnu.hash" ld.bfd errors on openSUSE.

Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Tom Rini <trini@ti.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
diff --git a/board/ti/am335x/u-boot.lds b/board/ti/am335x/u-boot.lds
index ceb2022..a9e3d34 100644
--- a/board/ti/am335x/u-boot.lds
+++ b/board/ti/am335x/u-boot.lds
@@ -118,6 +118,7 @@
 	.dynstr : { *(.dynstr*) }
 	.dynamic : { *(.dynamic*) }
 	.hash : { *(.hash*) }
+	.gnu.hash : { *(.gnu.hash) }
 	.plt : { *(.plt*) }
 	.interp : { *(.interp*) }
 	.gnu : { *(.gnu*) }