libceph: enable PRIMARY_AFFINITY feature bit

Announce our support for osdmaps with non-default primary affinity
values.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>

include/linux/ceph/ceph_features.h

@@ -91,7 +91,8 @@ static inline u64 ceph_sanitize_features(u64 features)
 	 CEPH_FEATURE_CRUSH_V2 |		\
 	 CEPH_FEATURE_EXPORT_PEER |		\
 	 CEPH_FEATURE_OSDMAP_ENC |		\
-	 CEPH_FEATURE_CRUSH_TUNABLES3)
+	 CEPH_FEATURE_CRUSH_TUNABLES3 |		\
+	 CEPH_FEATURE_OSD_PRIMARY_AFFINITY)
 
 #define CEPH_FEATURES_REQUIRED_DEFAULT   \
 	(CEPH_FEATURE_NOSRCADDR |	 \