gadgetd: packaging: Fix license issues and other warnings
gadgetd: packaging: Fix license issues and other warnings

Fix wrong license name for gadgetd package
and also fix incorrect (files contain headers where apache
license is used) licenses for library and devel package.

Fix also errors related to missing calls to ldconfig

Change-Id: I577a4a487004cf99c9a8864530b871199abcd69b
Signed-off-by: Krzysztof Opasiak <8064eda6f94b3817252b7d7649cf754592f63500@samsung.com>

gadgetd/gadgetd,gadgetd/gadgetd,gadgetd/gadgetd