MT#20189 debian: fix lintian error

> E: ngcp-libtcap0: package-must-activate-ldconfig-trigger usr/lib/libtcap.so.0
>
> N: The package installs shared libraries in a directory controlled by the
> N: dynamic library loader. Therefore, the package must trigger libc's
> N: "ldconfig" trigger to ensure the ldconfig cache is updated.
> N:
> N: This should be done via a activate-noawait ldconfig trigger. With
> N: debhelper it is usually sufficient to simply add that line to
> N: debian/<package>.triggers.
> N:
> N: Refer to Debian Policy Manual section 8.1.1 (ldconfig) and
> N: https://lists.debian.org/debian-devel/2015/08/msg00412.html for details.
> N:
> N: Severity: serious, Certainty: certain
> N:
> N: Check: shared-libs, Type: binary, udeb

Change-Id: Ia6c28196e0f4500d0c4a5a601f78dd0f913761ce

debian/compat

@@ -1 +1 @@
-7
+9

debian/ngcp-libtcap0.triggers

@@ -0,0 +1 @@
+activate-noawait ldconfig