plugins/virtium: use time_t for time_stamp values

In the vtview_log structs, time_t should be used for any time_stamp
values instead of long. This ensures correct builds on 32-bit
architectures even with 64-bit time_t (e.g. armhf on Ubuntu).

Signed-off-by: Heitor Alves de Siqueira <halves@canonical.com>

Author: hrasiq

plugins/virtium/virtium-nvme.c

@@ -32,14 +32,14 @@ static char vt_default_log_file_name[256];
 struct vtview_log_header {
 	char				path[256];
 	char				test_name[256];
-	long				time_stamp;
+	time_t				time_stamp;
 	struct nvme_id_ctrl		raw_ctrl;
 	struct nvme_firmware_slot	raw_fw;
 };
 
 struct vtview_smart_log_entry {
 	char			path[256];
-	long			time_stamp;
+	time_t			time_stamp;
 	struct nvme_id_ns	raw_ns;
 	struct nvme_id_ctrl	raw_ctrl;
 	struct nvme_smart_log	raw_smart;