This commit modifies the conf and Makefile files of the DNS client
application.
Inside the Makefile, the CONF_FILE variable is updated to include
the BOARD name, therefore prj_'board_name'.conf is used from now on
to refer to the conf file. The right conf file is selected by passing
BOARD='board_name' to make.
Configuration variables at the conf files are also homogenized.
Change-Id: I6f5aaad0b52d458bceb90b315aba2b31f085c0a0
Signed-off-by: Flavio Santes <flavio.santes@intel.com>
Flavio Santes