ARM: dts: msm: disable lpm and modify boot option for QCS405

Link stability issues are being seen with LPM enabled,
Hence disable link low power modes. Modify boot option
such that end point enumeration can be initiated by RC
during probe.

Change-Id: Ic9e668fd6669ecbe957263f0c7c1dc65eb6238ad
Signed-off-by: Rama Krishna Phani A <rphani@codeaurora.org>