Modified the seal ring abstract view so that it shows as DRC clean
under DRC style "drc(full)".  Updated the magicrc file to default
to MAGTYPE = "mag", as there are few reasons other than standard
cell layouts to use "maglef" type.
diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index fa731c9..d8d3c41 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -3780,7 +3780,7 @@
 
  layer ppu pfetarea
  and-not LVTN
- and-not HVTP
+ and HVTP
  and COREID
  labels DIFF