This patch adds BR2_PACKAGE_PROFTPD_MOD_SFTP support and also
changes the .mk file to add required modules as a list in a
separate variable. This new variable will help in future to add
more module support in proftpd package.
Signed-off-by: Paresh Chaudhary <paresh.chaudhary@rockwellcollins.com>
Signed-off-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>