insane.bbclass: add entries for linux-gnux32

For x86_64 new ABI : x32, there is a new
name for the TARGET_OS: linux-gnux32

(From OE-Core rev: 9dd0a7bf64ca2ca3613ab45dc779e9dcc1592342)

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/insane.bbclass

@@ -90,6 +90,9 @@ def package_qa_get_machine_dict():
                         "microblaze":   (47787,  0,    0,          False,         32),
                         "microblazeel": (47787,  0,    0,          True,          32),
                       },
+            "linux-gnux32" :       {
+                        "x86_64":     (62,     0,    0,          True,          32),
+                      },
        }