ARM: dts: msm: update the ESR pulse width in pmicobalt

As per the hardware documentation, increase the duration
between attempts to measure ESR as the ESR pulse amplitude got
increased. This is to reduce the power consumption.

Change-Id: I65027413ecb22a1e89e37a12f66c5abda6c3ba28
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>