tcf-agent: disable package for powerpc64

Fails to build, disable powerpc64 until upstream fixed it

Fixes:
  http://autobuild.buildroot.net/results/5088f6efd44ce9b081c2c7825a7005a9cb60799d

Signed-off-by: Norbert Lange <nolange79@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/tcf-agent/Config.in

@@ -28,8 +28,8 @@ config BR2_PACKAGE_TCF_AGENT_ARCH
 	default "i386"       if BR2_i386 && !BR2_ARCH="i686"
 	default "x86_64"     if BR2_x86_64
 	default "powerpc"    if BR2_powerpc || BR2_powerpcle
-	default "ppc64"      if BR2_powerpc64 || BR2_powerpc64le
-#	fails to build currently
+#	those architectures fail to build currently
+#	default "ppc64"      if BR2_powerpc64 || BR2_powerpc64le
 #	default "microblaze" if BR2_microblaze || BR2_microblazeel
 
 config BR2_PACKAGE_TCF_AGENT_ARCH_SUPPORTS