ARM: dts: msm: Update buses configuration for SA8155 VM

Provide updated bus entries for SE3 SPI and SE13 4-wire
UART. Remove miso sleep for SE3 SPI as it not required on
a VM. Add an active pinctrl set for 4-wire UART to support
active usecases.

Change-Id: Ib63aba5e8f1d73402051b1ca8952fa9e102acbe2
Signed-off-by: Anant Goel <anantg@codeaurora.org>