ARM: dts: msm: Set LPM NYET threshold property for msmzirc

Set property for specifying LPM NYET threshold parameter.
If BESL value received from the host in the LPM token is
less than this value we send LPM ACK to the host.
Otherwise the device returns LPM NYET.

Change-Id: Ie9245b5cefff54880be1c96fb48a97ade910de25
Signed-off-by: Mayank Rana <mrana@codeaurora.org>