ARM: dts: msm: Increase the "fg-bmd-en-delay" for sdm429w

The default BMD delay of 200ms is not enough to settle down
the batt_id. Hence, increase the delay to 300ms.

Change-Id: I5b4d244a47d424401c3a58626682995fe81bc660
Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>