Fix tie offs in TSMC 28nm sram instantiation

sram/TSMC28nm/verilog/sl_sram.v

@@ -61,7 +61,11 @@ generate
       .EMA   (TIE_EMA),
       .EMAW  (TIE_EMAW),
       .GWEN  (GWEN),
-      .RET1N (TIE_RET1N)
+      .RET1N (TIE_RET1N),
+      .EMAS  (1'b0),
+      .STOV  (1'b0),
+      .WABL  (1'b1),
+      .WABLM (2'b00)
     );
 
   end
@@ -81,7 +85,11 @@ generate
       .EMA   (TIE_EMA),
       .EMAW  (TIE_EMAW),
       .GWEN  (GWEN),
-      .RET1N (TIE_RET1N)
+      .RET1N (TIE_RET1N),
+      .EMAS  (1'b0),
+      .STOV  (1'b0),
+      .WABL  (1'b1),
+      .WABLM (2'b00)
     );
   end
 endgenerate