Merge pull request #681 from luanbalbino/fix-user-button-pin-zcu106

Fix ZCU106 user button pin: properly handle SW_C assignment based on official user guide

Author: enjoy-digital

litex_boards/platforms/xilinx_zcu106.py

@@ -28,7 +28,7 @@
     ("user_led", 7, Pins("AM11"), IOStandard("LVCMOS12")),
 
     # Buttons
-    ("user_btn_c", 0, Pins("AL11"), IOStandard("LVCMOS12")),
+    ("user_btn_c", 0, Pins("AL10"), IOStandard("LVCMOS12")),
     ("user_btn_n", 0, Pins("AG13"), IOStandard("LVCMOS12")),
     ("user_btn_s", 0, Pins("AP20"), IOStandard("LVCMOS12")),
     ("user_btn_w", 0, Pins("AK12"), IOStandard("LVCMOS12")),