power: vm-bms: Skip SOC monitoring logic for a debug-board

On detecting a debug-board a fixed SOC is reported, hence
there is no need of monitoring SOC changes.

Change-Id: I4d54e30f734564b8048c18a1cb9b52e31e0b3efa
Signed-off-by: Kavya Nunna <knunna@codeaurora.org>