[OOF] Add make clean target

Add make clean target to ensure that removed dependencies are always
cleaned up properly.

Issue-ID: OPTFRA-803
Change-Id: I2f845c775d5643c7a8b4539b35886fbf79ce889a
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
1 file changed