buildroot

board/technologic/ts5x00: bump kernel to 4.14

Bump the 3.17 kernel used for the Technologic Systems TS-5500 platform
to the latest LTS kernel 4.14.

This fixes the ts5x00_defconfig build with GCC 6.x.

The linux-3.17.config file has been renamed to linux-4.14.config to
match the new kernel version, and its changes are the result of make
linux-update-defconfig. However only comments are affected.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>