Mount virtual disk flags

typedef enum _PRL_MOUNT_VIRTUAL_DISK {
  PMVD_READ_ONLY = 1<<(PACF_MAX+1),
  PMVD_READ_WRITE = 1<<(PACF_MAX+2),
  PMVD_INFO = 1<<(PACF_MAX+3)
} PRL_MOUNT_VIRTUAL_DISK;