power: smb5: Disable bat-temp irq upon debug battery detection

On some boards, debug batteries cause a high value of battery
temperature to be read due to HW faults, and thereby, the continuous
triggering of the "bat-temp" interrupt. Prevent this false positive from
occurring.

Change-Id: I7c8058d3470159bd3ee423bc9c4873c5fb4973b0
Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>