msm: ADSPRPC: Update driver to create its own device node

Create device node under /dev/adsprpc-smd. Users no longer have to run
mknod after the driver is installed.

Change-Id: I5f5ae4dafc37ce8e87ef2c91358be9bfd5934b8a
Acked-by: Anatoly Yakovenko <anatolyy@qti.qualcomm.com>
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
1 file changed