Makefile: add .PHONY dependency
Makefile: add .PHONY dependency

Enough wasted time on a random 'all' file... Thanks Andres and Josh!

Signed-off-by: Jens Axboe <cd8c6775e60d6f67a6984377324e5290df3d5358@kernel.dk>

axboe/liburing,axboe/liburing,axboe/liburing