Add driver for NVM Express block devices, ie. PCIe connected SSDs.
Targets which allow booting from NVMe (x86, maybe some mvebu boards come
to mind) should have it built-in, so rootfs can be mounted from there.
For targets without NVMe support in bootloader or BIOS/firmware it's
sufficient to provide the kernel module package.
On targets having the NVMe driver built-in the resulting kmod package
is an empty dummy. In any case, depending on or installing kmod-nvme
results in driver support being available (either because it was already
built-in or because the relevant kernel modules are added and loaded).
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit dbe53352e38d20bb5245158b19d4ff810c209548)