Bignum tests: set unique combinations off by default

Normally we need all the combinations, unique combinations make sense
only if the operation is commutative.

No changes to generated tests.

Signed-off-by: Janos Follath <janos.follath@arm.com>
diff --git a/scripts/mbedtls_dev/bignum_common.py b/scripts/mbedtls_dev/bignum_common.py
index e03c1c3..67ea78d 100644
--- a/scripts/mbedtls_dev/bignum_common.py
+++ b/scripts/mbedtls_dev/bignum_common.py
@@ -93,7 +93,7 @@
     symbol = ""
     input_values = INPUTS_DEFAULT # type: List[str]
     input_cases = [] # type: List[Any]
-    unique_combinations_only = True
+    unique_combinations_only = False
     input_styles = ["variable", "fixed", "arch_split"] # type: List[str]
     input_style = "variable" # type: str
     limb_sizes = [32, 64] # type: List[int]