weston: fix DEPENDENCIES typo

Fixes a build failure with the PPS patchset since libva isn't populated.

Signed-off-by: Gustavo Zacarias <gustavo.zacarias@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/weston/weston.mk

@@ -109,7 +109,7 @@ endif
 
 ifeq ($(BR2_PACKAGE_LIBVA),y)
 WESTON_CONF_OPTS += --enable-vaapi-recorder
-WESTON_DEPENDENIES += libva
+WESTON_DEPENDENCIES += libva
 else
 WESTON_CONF_OPTS += --disable-vaapi-recorder
 endif