kernel/msm: Add qrngp header file

Add qrngp header file, required for external/qrngd project.

Change-Id: Iac27ff57df91efe370ec749451142942289b23a8
Signed-off-by: Hariprasad Dhalinarasimha <hnamgund@codeaurora.org>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>