nativesdk-qtbase: add nativesdk version of qtbase necessary for SDK tools

Signed-off-by: Denys Dmytriyenko <denys@ti.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
nativesdk-qttools: add nativesdk version of qttools necessary for SDK tools

Signed-off-by: Denys Dmytriyenko <denys@ti.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
qttools-native: remove previous license workaround

Previously license files were missing for qttools module, so we used to point
to generic files with same license.

Signed-off-by: Denys Dmytriyenko <denys@ti.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>