1. Refactor osal cpp files to c.
2. Update osal license to Apache-2.0 OR MIT.
3. Remove windows support.
Signed-off-by: Herman Chen <herman.chen@rock-chips.com>
Change-Id: Ic5545d861676880f7a6247515404d585cd4fcef5
use fromdos to change file type, remove ^M in code.
Change-Id: I000202dc51fcff57cc0771455baebea595115b1d
Signed-off-by: Lin Kesheng <lks@rock-chips.com>