NVMe: Define Log Page constants

Taken from the 1.1a version of the spec

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
diff --git a/include/uapi/linux/nvme.h b/include/uapi/linux/nvme.h
index a6fb2a3..29a7d86 100644
--- a/include/uapi/linux/nvme.h
+++ b/include/uapi/linux/nvme.h
@@ -306,6 +306,10 @@
 	NVME_FEAT_WRITE_ATOMIC	= 0x0a,
 	NVME_FEAT_ASYNC_EVENT	= 0x0b,
 	NVME_FEAT_SW_PROGRESS	= 0x0c,
+	NVME_LOG_ERROR		= 0x01,
+	NVME_LOG_SMART		= 0x02,
+	NVME_LOG_FW_SLOT	= 0x03,
+	NVME_LOG_RESERVATION	= 0x80,
 	NVME_FWACT_REPL		= (0 << 3),
 	NVME_FWACT_REPL_ACTV	= (1 << 3),
 	NVME_FWACT_ACTV		= (2 << 3),