[lld] [LLD, MachO] Default objc_relative_method_lists on MacOS11+/iOS14+ (PR #101360)

[Peter Rong via llvm-commits]

================
@@ -51,7 +62,7 @@ CHK_REL-NEXT:    imp 0x{{[0-9a-f]*}} (0x{{[0-9a-f]*}})  +[MyClass class_method_0
 
 CHK_NO_REL-NOT: (relative)
 
-CHK_NO_REL:           Contents of (__DATA_CONST,__objc_classlist) section
+CHK_NO_REL:           Contents of (__DATA{{(_CONST)?}},__objc_classlist) section
----------------
DataCorrupted wrote:

`CONST` doesn't show up on MacOS 10

https://github.com/llvm/llvm-project/pull/101360