rename vpp-dpdk-dev to vpp-ext-deps

We need to have new tenants in the development package.
This is first of series of patches which will allow us to have multiple
external libs and tools packaged for developer's convenience.

Change-Id: I884bd75fba96005bbf8cea92774682b2228e0e22
Signed-off-by: Damjan Marion <damarion@cisco.com>
diff --git a/build/external/deb/debian/control b/build/external/deb/debian/control
new file mode 100644
index 0000000..80b81b8
--- /dev/null
+++ b/build/external/deb/debian/control
@@ -0,0 +1,13 @@
+Source: vpp-ext-deps
+Section: net
+Priority: extra
+Maintainer: vpp-dev@lists.fd.io
+Build-Depends: debhelper (>= 9), dkms
+Standards-Version: 3.9.4
+
+Package: vpp-ext-deps
+Architecture: any
+Depends: ${shlibs:Depends}
+Description: VPP developer package containing dependencies
+Replaces: vpp-dpdk-dev
+Conflicts: vpp-dpdk-dev