ARM: dts: msm: add dt entry to control scaling based on temperature

At lower temperatures (<-40degree), SDHC DLL is failing to lock on
RadagastAU target which is leading to CRC issues with SD card in
SDR104 mode.
As workaround to this hardware issue, software is avoiding running
SD card in SDR104 mode at lower temperatures.
Adding dt entries to sdhci node for getting temperature sensor ids
and threshold values for supporting temperature based clock scaling.

Change-Id: I1b3877ba47090a6f9cd3321bfc5e97fd3de99372
Signed-off-by: Ram Prakash Gupta <rampraka@codeaurora.org>