cmds: move command function to their own header

Split the ioctl APIs from the commands API. While at it, also remove a
few of the unnecessary header dependencies. The aim here is to make
the ioctl header as small as possible. This will make any porting
attempts simpler.

Signed-off-by: Daniel Wagner <[email protected]>

Author: igaw

libnvme/src/libnvme-mi.h

@@ -14,6 +14,7 @@ extern "C" {
 #endif
 
 #include <nvme/types.h>
+#include <nvme/cmds.h>
 #include <nvme/mi.h>
 #include <nvme/log.h>
 

libnvme/src/libnvme.h

@@ -15,6 +15,7 @@ extern "C" {
 #endif
 
 #include <nvme/types.h>
+#include <nvme/cmds.h>
 #include <nvme/linux.h>
 #include <nvme/ioctl.h>
 #include <nvme/nbft.h>