nvme: separate nvme and lightnvm

This commit separates lightnvm from nvme by moving functions and types
to dedicated files.

Also, because we intend to support more dialects, move the nvme device
to a subdirectory so we do not clutter the hw/block directory too much.

Signed-off-by: Klaus B. A. Jensen <klaus.jensen@cnexlabs.com>

Makefile.objs

@@ -150,6 +150,7 @@ trace-events-subdirs += hw/arm
 trace-events-subdirs += hw/audio
 trace-events-subdirs += hw/block
 trace-events-subdirs += hw/block/dataplane
+trace-events-subdirs += hw/block/nvme
 trace-events-subdirs += hw/char
 trace-events-subdirs += hw/display
 trace-events-subdirs += hw/dma

hw/block/Makefile.objs

@@ -7,7 +7,7 @@ common-obj-$(CONFIG_PFLASH_CFI02) += pflash_cfi02.o
 common-obj-$(CONFIG_XEN) += xen-block.o
 common-obj-$(CONFIG_ECC) += ecc.o
 common-obj-$(CONFIG_ONENAND) += onenand.o
-common-obj-$(CONFIG_NVME_PCI) += nvme.o
+common-obj-$(CONFIG_NVME_PCI) += nvme/nvme.o nvme/lightnvm.o
 
 obj-$(CONFIG_SH4) += tc58128.o