modified axibram_read to mask bram_ren with dev_ready (and so bram_regen too)

axi/axibram_read.v

@@ -145,7 +145,8 @@ module  axibram_read #(
 `ifdef USE_SHORT_REN_REGEN 
    reg bram_regen_r;
 //   assign  bram_ren =   bram_reg_re_w && !pre_last_in_burst_r ;     // read port enable
-   assign  bram_ren = read_in_progress;
+///   assign  bram_ren = read_in_progress;
+   assign  bram_ren = read_in_progress && dev_ready;
    assign  bram_regen = bram_regen_r;     // output register enable
 `else
    assign  bram_ren =   bram_reg_re_w;     // read port enable