ANDROID: GKI: drop unneeded "_whitelist" off of symbol filenames

No need for "_whitelist" to be on the abi symbol files, it's just a
list of abi symbols we are going to support.

Bug: 160578303
Cc: Matthias Maennich <maennich@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I0e4c449550f41ff364a09a2987e877a62b986be7