DynASM/x86: Add ADX instructions.

Thanks to Peter Cawley.

dynasm/dasm_x86.lua

@@ -1673,6 +1673,10 @@ local map_op = {
   vpsravd_3 =	"rrmoy:660F38V46rM",
   vpsrlvd_3 =	"rrmoy:660F38V45rM",
   vpsrlvq_3 =	"rrmoy:660F38VX45rM",
+
+  -- Intel ADX
+  adcx_2 =	"rmqd:660F38F6rM",
+  adox_2 =	"rmqd:F30F38F6rM",
 }
 
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