PROV_R_INVALID_FUNCTION_NAME: Fix colliding error reason code

Reviewed-by: Norbert Pocs <norbertp@openssl.org>
Reviewed-by: Eugene Syromiatnikov <esyr@openssl.org>
MergeDate: Fri Jan 23 17:42:08 2026
(Merged from openssl#29738)

Author: t8m

crypto/err/openssl.txt

@@ -1073,7 +1073,7 @@ PROV_R_INVALID_DIGEST_LENGTH:166:invalid digest length
 PROV_R_INVALID_DIGEST_SIZE:218:invalid digest size
 PROV_R_INVALID_EDDSA_INSTANCE_FOR_ATTEMPTED_OPERATION:243:\
 	invalid eddsa instance for attempted operation
-PROV_R_INVALID_FUNCTION_NAME:256:invalid function name
+PROV_R_INVALID_FUNCTION_NAME:258:invalid function name
 PROV_R_INVALID_INPUT_LENGTH:230:invalid input length
 PROV_R_INVALID_ITERATION_COUNT:123:invalid iteration count
 PROV_R_INVALID_IV_LENGTH:109:invalid iv length

include/openssl/proverr.h

@@ -65,7 +65,7 @@
 #define PROV_R_INVALID_DIGEST_LENGTH 166
 #define PROV_R_INVALID_DIGEST_SIZE 218
 #define PROV_R_INVALID_EDDSA_INSTANCE_FOR_ATTEMPTED_OPERATION 243
-#define PROV_R_INVALID_FUNCTION_NAME 256
+#define PROV_R_INVALID_FUNCTION_NAME 258
 #define PROV_R_INVALID_INPUT_LENGTH 230
 #define PROV_R_INVALID_ITERATION_COUNT 123
 #define PROV_R_INVALID_IV_LENGTH 109