.gitignore: add compile_commands.json

Add Clang's compilation database file (i.e. compile_commands.json) to
.gitignore, at the root of the repository.

Signed-off-by: Joao Marcos Costa <jmcosta944@gmail.com>
Tested-by: Joao Paulo Goncalves <joao.goncalves@toradex.com>
1 file changed