chore: update tt-multiplexer / openlane2 / IHP PDK

adds power connections, seal ring, etc

.github/workflows/gds.yaml

@@ -123,7 +123,7 @@ jobs:
           EXPECTED_REPO: ${{ github.repository }}
         run: |
           # temporary workaround for missing bits in pad_raw:
-          sed -i 's/inout \[61:0\] pad_raw/inout [63:0] pad_raw/' ../../../ihp/verilog/gl/tt_ihp_wrapper.nl.v
+          sed -i 's/inout \[49:0\] pad_raw/inout [63:0] pad_raw/' ../../../ihp/verilog/gl/tt_ihp_wrapper.nl.v
 
           make clean test_mux_gl
           # make will return success even if the test fails, so check for failure in the results.xml

.github/workflows/verification.yaml

@@ -32,8 +32,22 @@ jobs:
           cache: 'pip'
       - run: pip install -r tt/requirements.txt -r tt-multiplexer/py/requirements.txt -r verilog/dv/mux/requirements.txt
 
-      - name: install iverilog
-        run: sudo apt-get update && sudo apt-get install -y iverilog
+      - name: ccache
+        uses: hendrikmuhs/[email protected]
+
+      - name: Install iverilog
+        shell: bash
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y bison flex gperf libbz2-dev
+          git clone https://github.com/steveicarus/iverilog
+          cd iverilog
+          git checkout d8c3c51ab1190ed3fb26540d7de6177f83e0e75b
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+          sh autoconf.sh
+          ./configure
+          make
+          sudo make install
 
       - name: Configure the multiplexer for testing
         run: python ./tt/configure.py --update-shuttle --test