ARM: dts: msm: Enable CDROM lun creation for msm8909

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.

Change-Id: I32752627ccdfec59e1d18cbecd2133f26afbf53d
Signed-off-by: Guoping Yu <guopingy@codeaurora.org>