util_adxcvr: CPLLPD should be used for reset

For CPLL reset the CPLLPD ports should be used, instead of the
CPLLRESET. The recommended reset width is above 2us.
See UG576 pg. 60 for more detail.

library/xilinx/util_adxcvr/util_adxcvr_xch.v

@@ -2044,10 +2044,10 @@ module util_adxcvr_xch #(
     .CPLLLOCK (cpll_locked_s),
     .CPLLLOCKDETCLK (up_clk),
     .CPLLLOCKEN (1'd1),
-    .CPLLPD (1'b0),
+    .CPLLPD (up_cpll_rst),
     .CPLLREFCLKLOST (),
     .CPLLREFCLKSEL (3'b001),
-    .CPLLRESET (up_cpll_rst),
+    .CPLLRESET (1'b0),
     .DMONFIFORESET (1'd0),
     .DMONITORCLK (1'd0),
     .DMONITOROUT (),