NVMe: Correct the definitions of two ioctls

NVME_IOCTL_SUBMIT_IO has a struct nvme_user_io, not a struct nvme_rw_command
as a parameter, and NVME_IOCTL_DOWNLOAD_FW is a Write, not a Read.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>

include/linux/nvme.h

@@ -395,8 +395,8 @@ struct nvme_dlfw {
 #define NVME_IOCTL_IDENTIFY_NS	_IOW('N', 0x40, struct nvme_id_ns)
 #define NVME_IOCTL_IDENTIFY_CTRL _IOW('N', 0x41, struct nvme_id_ctrl)
 #define NVME_IOCTL_GET_RANGE_TYPE _IOW('N', 0x42, struct nvme_lba_range_type)
-#define NVME_IOCTL_SUBMIT_IO	_IOWR('N', 0x43, struct nvme_rw_command)
-#define NVME_IOCTL_DOWNLOAD_FW	_IOR('N', 0x44, struct nvme_dlfw)
+#define NVME_IOCTL_SUBMIT_IO	_IOWR('N', 0x43, struct nvme_user_io)
+#define NVME_IOCTL_DOWNLOAD_FW	_IOW('N', 0x44, struct nvme_dlfw)
 #define NVME_IOCTL_ACTIVATE_FW	_IO('N', 0x45)
 
 #endif /* _LINUX_NVME_H */