arm/dt: 8974: Add MPM device into the device tree.

MPM driver is used to configure the MPM driver for monitoring wakeup
interrupts when the system is low power mode.

Change-Id: I711f71359b751c5be08aaaccff7ee3548e3243d9
Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
1 file changed