Update gitignore again

CPLD1/impl1/NewExtIns_CPLD1_impl1_synplify.lpf

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+#
+# Logical Preferences generated for Lattice by Synplify map202309lat, Build 191R.
+#
+
+# Period Constraints 
+#FREQUENCY PORT "i_sys_clk" 200.0 MHz;
+
+
+# Output Constraints 
+
+# Input Constraints 
+
+# Point-to-point Delay Constraints 
+
+
+
+# Block Path Constraints 
+
+BLOCK ASYNCPATHS;
+
+# End of generated Logical Preferences.