radius: sync with FreeRADIUS

radius: sync with FreeRADIUS

commit 8ffdba5aa45427bfc13a1c4638ddbf0d49c7542b
Author: Peter Lemenkov <lemenkov@gmail.com>
Date:   Sun Aug 19 20:44:06 2018 +0200

    Proper letter case

    IP-TOS-Field was renamed to IP-Tos-Field in commit
    c6670b1ac3e137df8f0af47103a82d1a575330f3. Let's rename it back to avoid
    any confusion.

    Similar changes for 3GPP-RAT-Type in dictionary.3gpp and for
    Unisphere-PPP-Protocol in dictionary.unisphere.

    Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
commit 43603a7234821354c69205a16945a19315e6fa4e
Author: Peter Lemenkov <lemenkov@gmail.com>
Date:   Sun Aug 19 19:37:08 2018 +0200

    Looks like this attribute should be 70

    Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
commit 070428a01041316c45f4670f709e0f37213a4255
Author: Peter Lemenkov <lemenkov@gmail.com>
Date:   Sun Aug 19 19:36:47 2018 +0200

    Remove duplicated attribute definitions

    Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Change-Id: I71951e0fa677396860f61fcd66922b969054fe06
Reviewed-on: https://code.wireshark.org/review/29625
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>