ARM: dts: msm: Configure charger parameters for 8084 MTP

Configure the termination current, float voltage and
recharge threshold values for the SMB349 charger on
8084 MTP.

While at it re-enable charging. It was disabled by
mistake in the previous patch.

Change-Id: I1bf95751d027e1d86cbe1b18e146b7f66d6a87e9
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>