drivers: thermal: Add support for RPM SMD cooling device

Add support for RPM SMD cooling device to thermal framework.
It can send multiple temperature bands to RPM hardware when
predefined trip is violated. It uses RPM SMD interface to
communicate to RPM hardware.

Change-Id: Iec1f8ecc9abb883203039c2952ad918d01eb1edb
Signed-off-by: Manaf Meethalavalappu Pallikunhi <manafm@codeaurora.org>