arm/dt: msm9625: Fix compilation errors

qrng device was added at the wrong node, it is now added at the root node.
This fixes the compilation error caused due to commit:
f2114f80bc44c52e7c1c9fc25b5f76a1006e8408.

Change-Id: I1d6afd9c46473c9a980dd7b4c7a20e5200a9dde2
Signed-off-by: Hariprasad Dhalinarasimha <hnamgund@codeaurora.org>