scripts/xls_to_doc.py: be clearer when ignoring a value in verbose mode

Print what value was not changed because it is duplicated.

Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Reviewed-by: Kamil Konieczny <kamil.konieczny@linux.intel.com>

scripts/xls_to_doc.py

@@ -298,7 +298,7 @@ class FillTests(TestList):
                             continue
                         if doc_value == value:
                             if self.verbose > 1:
-                                print(f"{testname}@{subtest} field {field}: Value unchanged. Ignoring it")
+                                print(f"{testname}@{subtest} field {field}: Value unchanged: {value}. Ignoring it")
                             continue
 
                     if self.verbose > 0: