ARM: dts: msm: Add QUPV3 SE dt node for uart on sdm640

Add initial device tree nodes for QUPV3 uart
instance to support serial console.

Change-Id: If5c128da74f16c77dcb507ad5c8e243ea678353e
Signed-off-by: Mukesh Kumar Savaliya <msavaliy@codeaurora.org>
Signed-off-by: Shrey Vijay <shreyv@codeaurora.org>
Signed-off-by: Srinivas Ramana <sramana@codeaurora.org>