This replaces the use of uci_validate_section() with
uci_load_validate(), which removes the need to declare local variables
for every config option.

Signed-off-by: Jeffery To <jeffery.to@gmail.com>

Without this, produces an error :
<code>/etc/rc.common: line 1: contentscannertimeout:uinteger: not found
validation failed
/etc/rc.common: line 1: contentscannertimeout:uinteger: not found</code>

Signed-off-by: Julien Paquit julien@databeille.com

Signed-off-by: Marko Ratkaj <marko.ratkaj@sartura.hr>

Signed-off-by: Luka Perkov <luka@openwrt.org>