ARM: dts: msm: enable UFS HS-G4 related attributes for Kona

UFS 3.0 devices support HS-G4 bus speed modes and these devices
need additional voltage supply to be enabled. In addition, this
change adds new bus bandwidth votes for HS-G4.

Change-Id: Ie4c19e89be2daf8f6739bacdf04f7faa1770ef06
Signed-off-by: Bao D. Nguyen <nguyenb@codeaurora.org>