Commit "50332a530b gcc: rename option for ARC gcc" tried to add legacy
handling but the new symbol is part of a choice, and Kconfig does not
enforce the select of a option from a choice.
Update the legacy entry for 2016.11, following the example described in
the beginning of the file.
Cc: Giulio Benetti <giulio.benetti@benettiengineering.com>
Cc: Romain Naour <romain.naour@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
eb8f38891b