tor: needs NPTL threads

Fixes:

  http://autobuild.buildroot.org/results/f09/f09af8dd0d85bc6137a0c2f26cbe62686767b957/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/tor/Config.in

@@ -1,7 +1,7 @@
 config BR2_PACKAGE_TOR
 	bool "tor"
 	depends on BR2_USE_MMU # fork()
-	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
 	select BR2_PACKAGE_LIBEVENT
 	select BR2_PACKAGE_OPENSSL
 	select BR2_PACKAGE_ZLIB
@@ -14,6 +14,6 @@ config BR2_PACKAGE_TOR
 
 	  https://www.torproject.org
 
-comment "tor needs a toolchain w/ threads"
+comment "tor needs a toolchain w/ NPTL"
 	depends on BR2_USE_MMU
-	depends on !BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL