Fix removed space in merge resolution

This space was mysteriously removed during the merge, restore it here.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 9b22348..9d772fc 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -7749,7 +7749,7 @@
  * \param  bits  The number of bits of the key
  *
  * \retval #PSA_SUCCESS
- *        The key type and size are valid.
+ *         The key type and size are valid.
  * \retval #PSA_ERROR_INVALID_ARGUMENT
  *         The size in bits of the key is not valid.
  * \retval #PSA_ERROR_NOT_SUPPORTED