ARM: dts: msm: change vfloat to 4.35V on PMI8994 charger

The new batteries for msm8994 are rated to have a max voltag of 4.35V.
Change the charger vfloat setting to 4.35 in order to fully charge the
battery.

Change-Id: I44eaa40f6f4857d804c8570183f7d9bb8f6f60a0
Signed-off-by: Xiaozhe Shi <xiaozhes@codeaurora.org>