Fix bignum test generator class names

Co-authored-by: minosgalanakis <30719586+minosgalanakis@users.noreply.github.com>
Signed-off-by: Janos Follath <janos.follath@arm.com>
diff --git a/scripts/mbedtls_dev/bignum_mod.py b/scripts/mbedtls_dev/bignum_mod.py
index 117e1ee..2bd7fbb 100644
--- a/scripts/mbedtls_dev/bignum_mod.py
+++ b/scripts/mbedtls_dev/bignum_mod.py
@@ -18,7 +18,7 @@
 
 from . import test_data_generation
 
-class BignumCoreTarget(test_data_generation.BaseTarget, metaclass=ABCMeta):
+class BignumModTarget(test_data_generation.BaseTarget, metaclass=ABCMeta):
     #pylint: disable=abstract-method
     """Target for bignum mod test case generation."""
     target_basename = 'test_suite_bignum_mod.generated'