Contribs: disable speex NEON on aarch64

(cherry picked from commit 6860455438177ba8669a2d0738bdd9503abc5cb5)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

contrib/src/speex/rules.mak

@@ -34,6 +34,9 @@ ifeq ($(ARCH),arm)
 SPEEX_CONF += --enable-arm5e-asm
 endif
 endif
+ifeq ($(ARCH),aarch64)
+SPEEX_CONF += --disable-neon
+endif
 
 .speex: speex
 	mkdir -p $</m4 && $(RECONF)