debug is boolean option/flag so setting it to 9 doesn't work, while at
it I've synchronized boolean options from source code and sorted it
alphabeticaly with following command:

  grep flag src/cmdline.ggo | cut -d \" -f2 | sort | tr '\n' '|'

Signed-off-by: Petr Štetiar <ynezz@true.cz>

Code in option_cb was referencing $chilli_inst variable which was
declared as local, thus the instance startup logic in start_chilli was
referencing variable which would always get value of 1, effectively
making `disabled` config option useless.

So I've fixed it with simpler config_get_bool and while at it, I've simplified the
surrounding code little bit as well.

Signed-off-by: Petr Štetiar <ynezz@true.cz>

Signed-off-by: Petr Štetiar <ynezz@true.cz>

Signed-off-by: Jaehoon You <teslamint@gmail.com>

Before starting chilli instance, it first removes generated
files (/var/run/chilli*) for the instance. While deleting
generated files, it doesn't match full instance name.

Thus if coova-chilli config file (/etc/config/chilli) has
instances wlan11 and wlan1 in order,
when creating coova-chilli instance for wlan1, it is removing
files generated for wlan11 instances also (as it uses wlan1*
in remove command).

Fix issue by matching full instance name while removing old files.

Signed-off-by: Rajan Vaja <rajan.vaja@gmail.com>
Signed-off-by: Bhargav Patel <br13patel@gmail.com>