Francisco Molina 842b7e37c8 bootloaders/riotboot: set RIOTBOOT_BUILD ...

Set a make variables to indicate `riotboot` application (riots
bootloader) is being built.

2020-01-10 11:42:16 +01:00

..

riotboot

bootloaders/riotboot: set RIOTBOOT_BUILD

2020-01-10 11:42:16 +01:00