contrib: speex: explicitely disable ogg

(cherry picked from commit de3b2746ea3f5f58add24c7c8f91c1ffc149b63e)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

contrib/src/speex/rules.mak

@@ -27,7 +27,7 @@ speex: speex-$(SPEEX_VERSION).tar.gz .sum-speex
 	$(ZCAT) "$<" | (cd $@-git && tar xv --strip-components=1)
 	$(MOVE)
 
-SPEEX_CONF :=
+SPEEX_CONF := --without-ogg
 ifndef HAVE_FPU
 SPEEX_CONF += --enable-fixed-point
 ifeq ($(ARCH),arm)