msm: copper: Rename SDCC device names to msm_sdcc.[slot] format

Rename SDCC device names to msm_sdcc.[slot] as opposed to
device tree address,sdcc format to be consistent with
non-device tree targets.  This allows compatibility with
existing userspace applications that require direct
access to specific SDCC slot in a target-independent
manner.

Change-Id: I6012e7a104d1ee3da88e4bca8fa83a60014dda38
Signed-off-by: David Ng <dave@codeaurora.org>