package/libnfs: fix pthread option

Fix typo added by commit f9f5b3a6cbc4e62beefdd0448842ef0c8c3eb6f6

Fixes: f9f5b3a6cbc4e62beefdd0448842ef0c8c3eb6f6

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>

package/libnfs/libnfs.mk

@@ -17,9 +17,9 @@ LIBNFS_DEPENDENCIES += libtirpc
 endif
 
 ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
-LIBNFS_CONF_OPTS += --enable-threads
+LIBNFS_CONF_OPTS += --enable-pthread
 else
-LIBNFS_CONF_OPTS += --disable-threads
+LIBNFS_CONF_OPTS += --disable-pthread
 endif
 
 $(eval $(autotools-package))