profiles: enable bind-tools again for ARM

bind-tools has been disabled since a long time, probably because of
build errors around cross-compilation for ARM. However, bind-tools
binaries should be at least included in ARM images. So enable bind-tools
again for ARM without gssapi included.

To do that, disable gssapi for bind-tools only in the ARM profile, and
enable gssapi only in the AMD profile.

sdk_container/src/third_party/coreos-overlay/profiles/coreos/amd64/generic/package.use

@@ -15,3 +15,6 @@ app-arch/tar                selinux
 # Only ship microcode currently distributed by Intel
 # See https://bugs.gentoo.org/654638#c11 by iucode-tool maintainer
 sys-firmware/intel-microcode vanilla
+
+# Enable gssapi only for amd64, to avoid build errors in arm64.
+net-dns/bind-tools           gssapi

sdk_container/src/third_party/coreos-overlay/profiles/coreos/arm64/package.provided

@@ -1,6 +1,3 @@
 # arm64 provided
 
 dev-libs/gobject-introspection-1.40.0-r1
-
-# build errors
-net-dns/bind-tools-9.11.2_p1

sdk_container/src/third_party/coreos-overlay/profiles/coreos/arm64/package.use

@@ -1,5 +1,8 @@
 # arm64 use
 
+# Disable gssapi for arm64 to avoid build errors
+net-dns/bind-tools -gssapi
+
 # FIXME: why isn't this set by default???
 sys-libs/ncurses unicode
 

sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/package.use

@@ -68,7 +68,6 @@ sys-kernel/coreos-sources symlink
 # set build options for ssdp
 net-nds/openldap minimal sasl
 sys-libs/glibc nscd
-net-dns/bind-tools gssapi
 
 # disable database build because otherwise it tries to generate a database in /etc
 dev-libs/cyrus-sasl kerberos -berkdb -gdbm