pkg: add missing dependency for pwrrt package

(cherry picked from commit bf0ba99cd88f4327c3deed026cfd927ce8464bf0)

src/tools/pkg/deb_x86_64/pwrrt/control

 Package: pwrrt
-Version: 5.7.0-3
+Version: 5.7.0-1
 Section: base
 Priority: optional
 Architecture: amd64
@@ -14,9 +14,8 @@ Depends: libc6 (>= 2.28-10),
  libhdf5-openmpi-103 (>=1.10.4),
  libgstreamer1.0-0 (>=1.14.4-1),
  libgstreamer-plugins-base1.0-0 (>=1.14.4-2),
- xterm,
  xfonts-100dpi
 Replaces: pwr34,pwr39,pwr40,pwr41,pwr42,pwr43,pwr44,pwr45,pwr46,pwr47,pwr48,pwr50,pwr51,pwr52,pwr53,pwr54,pwr55,pwr56
 Maintainer: Proview <postmaster@proview.se>
 Description:
- 5.7.0-3 Base release
+ 5.7.0-1 Base release