One more addition to the magic techfile, to make metal1 electrically
connected across obslic, which is only supposed to represent an
obstruction on the lower (locali) layer.

sky130/magic/sky130.tech

diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index d4e19de..3462a17 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -655,7 +655,7 @@
   *nwell,*nsd,*mvnsd,dnwell,pnp *nwell,*nsd,*mvnsd,dnwell,pnp
   pwell,*psd,*mvpsd,npn  pwell,*psd,*mvpsd,npn
   *li,coreli	*li,coreli
-  *m1,m1fill	*m1,m1fill
+  *m1,m1fill,obslic	*m1,m1fill,obslic
   *m2,m2fill	*m2,m2fill
   *m3,m3fill	*m3,m3fill
 #ifdef METAL5