scanning: skip more private devices

Just like lvm2 has internal devices like _tdata which is using UUID with
suffix, there is similar private type of device for crypto device where
they are using CRYPT-TEMP uuid prefix.

Also ignore stratis.

WHATS_NEW

@@ -1,5 +1,6 @@
 Version 2.02.178 - 
 =====================================
+  Skip private crypto and stratis devices.
   Skip frozen raid devices from scanning.
   Activate RAID SubLVs on read_only_volume_list readwrite
   Offer convenience type raid5_n converting to raid10

lib/activate/dev_manager.c

@@ -32,6 +32,8 @@
 
 #define MAX_TARGET_PARAMSIZE 50000
 #define LVM_UDEV_NOSCAN_FLAG DM_SUBSYSTEM_UDEV_FLAG0
+#define CRYPT_TEMP	"CRYPT-TEMP"
+#define STRATIS		"stratis-"
 
 typedef enum {
 	PRELOAD,
@@ -637,6 +639,17 @@ int device_is_usable(struct device *dev, struct dev_usable_check_params check)
 		}
 	}
 
+	if (check.check_reserved && uuid &&
+	    (!strncmp(uuid, CRYPT_TEMP, sizeof(CRYPT_TEMP) - 1) ||
+	     !strncmp(uuid, STRATIS, sizeof(STRATIS) - 1))) {
+		/* Skip private crypto devices */
+		log_debug_activation("%s: Reserved uuid %s on %s device %s not usable.",
+				     dev_name(dev), uuid,
+				     uuid[0] == 'C' ? "crypto" : "stratis",
+				     name);
+		goto out;
+	}
+
 	/* FIXME Also check for mpath no paths */
 	do {
 		next = dm_get_next_target(dmt, next, &start, &length,