Also set mipseb or mipsel macro for 64-bit mips CPU

compiler/fpcdefs.inc

@@ -275,10 +275,12 @@
 
 {$ifdef mips64}
   {$define mips}
+  {$define mipseb}
 {$endif mips64}
 
 {$ifdef mips64el}
   {$define mips}
+  {$define mipsel}
   {$define mips64}
 {$endif mips64el}