Add gitignore file
Add gitignore file

Change-Id: I491e88d2454a672b77e207aaf95d945c0b464591
Signed-off-by: Kyungwook Tak <88a9f012b27be67ba2251ac82183f3aaaf9ebee9@samsung.com>

Samsung/ckm,Samsung/ckm,Samsung/ckm