code refactoring for Vivado compatibility

hw/rtl/interfaces/VX_icache_req_if.sv

@@ -0,0 +1,32 @@
+`ifndef VX_ICACHE_CORE_REQ_IF
+`define VX_ICACHE_CORE_REQ_IF
+
+`include "../cache/VX_cache_define.vh"
+
+interface VX_icache_req_if #(
+    parameter WORD_SIZE = 1,
+    parameter TAG_WIDTH = 1
+) ();
+
+    wire                        valid;
+    wire [`WORD_ADDR_WIDTH-1:0] addr;
+    wire [TAG_WIDTH-1:0]        tag;    
+    wire                        ready;
+
+    modport master (
+        output valid,
+        output addr,
+        output tag,
+        input  ready
+    );
+
+    modport slave (
+        input  valid,
+        input  addr,
+        input  tag,
+        output ready
+    );
+
+endinterface
+
+`endif