long types are 8 bytes now

cparser/Machine.ml

@@ -239,6 +239,7 @@ let rv64 =
 
 let mppa_k1c =
   { ilp32ll64 with sizeof_ptr = 8;
+                   sizeof_long = 8;
                    name = "k1c";
                    char_signed = true;
                    supports_unaligned_accesses = true }