Updated references for gf180mcu and sky130.  This updates the
open_pdks reference for sky130 to pick up the modified makefile
from the previous commit, and picks up some changes made to the
gf180mcu_fd_pr library by Amro Tork.
diff --git a/gf180mcu/gf180mcu.json b/gf180mcu/gf180mcu.json
index ee8a05b..61a7cde 100644
--- a/gf180mcu/gf180mcu.json
+++ b/gf180mcu/gf180mcu.json
@@ -89,10 +89,10 @@
         "magic": "MAGIC_COMMIT"
     },
     "reference": {
-        "open_pdks": "89d3ef1161fb81dc835fc8e1bd2d8bd7eff7670b",
+        "open_pdks": "10d637bc671d3859099970970ec059caccd83cab",
         "magic": "22fbb2865682485b9c4a1a5803af65d44c3585c6",
         "gf180mcu_pdk": "a897aa30369d3bcec87d9d50ce9b01f320f854ef",
-        "gf180mcu_fd_pr": "79daabfe8869547dca455381955f393b2f8e7e05",
+        "gf180mcu_fd_pr": "9f7a3d4dcd4db06014f8cd648753ed1c8c69a1cf",
         "gf180mcu_fd_pv": "3ecd6ca451c6dfafb99ed334e0847a2e372f802d",
         "gf180mcu_fd_io": "2aeec51ea2824b6cc0b396acfc39f4535f40b23a",
         "gf180mcu_fd_sc_mcu7t5v0": "8743b6f9641eb8707179c4e51703380d4dc90f16",
diff --git a/sky130/sky130.json b/sky130/sky130.json
index a4640d0..750ab6a 100644
--- a/sky130/sky130.json
+++ b/sky130/sky130.json
@@ -93,7 +93,7 @@
         "magic": "MAGIC_COMMIT"
     },
     "reference": {
-        "open_pdks": "89d3ef1161fb81dc835fc8e1bd2d8bd7eff7670b",
+        "open_pdks": "10d637bc671d3859099970970ec059caccd83cab",
         "magic": "22fbb2865682485b9c4a1a5803af65d44c3585c6",
         "sky130_fd_pr": "7e2bb61f58345c203b693b2fcc178896965616d7",
         "sky130_fd_io": "2b8ce839a273734b2b1ec51b632c948f31814eb5",