ARM: dts: msm: Enable CDROM lun creation

Enable CDROM lun creation from device tree so that
LUN is created during initialization and LUN
media can be mounted. This creation only should
be done for QRD targets.

CRs-Fixed: 594147
Change-Id: I90fb3c022749f38af9d52d7ebf8b95819224891d
Signed-off-by: Sujeet Kumar <ksujeet@codeaurora.org>