Because NVM needs BLK_DEV_NVME, select it automatically if we mark NVM
in config file before building kernel.  Also append PCI to depends as
select doesn't automatically add dependencies.
Signed-off-by: NRakesh Pandit <rakesh@tuxera.com>
Signed-off-by: NMatias Bjørling <m@bjorling.me>
Signed-off-by: NJens Axboe <axboe@kernel.dk>