nimble/blemesh: Use valid company id
To avoid issues with implementation which does not support testing
company id 0xffff, lets use valid one.
#define BT_DBG_ENABLED (MYNEWT_VAL(BLE_MESH_DEBUG))
/* Company ID */
-#define CID_VENDOR 0xFFFF
+#define CID_VENDOR 0x05C3
#define STANDARD_TEST_ID 0x00
#define TEST_ID 0x01
static int recent_test_id = STANDARD_TEST_ID;
