msm: memshare: Makefile dependency on incorrect driver

Currently the memshare driver is wrongly dependent on kernel
messaging interface driver. This patch fixes that problem and
set the right dependency of memshare driver.

Change-Id: I013cfac30632a7babb5b99ae171b9c941058de3c
Signed-off-by: Katish Paran <kparan@codeaurora.org>