memshare: Align memshare driver to call new QMI functions

The patch deprecates the unused functions and make use of new
qmi functions for proper functionality.

CRs-Fixed: 2215280
Change-Id: I8064fbcbc6bcea985e8f7efdbd934dfbe8c062d4
Signed-off-by: Manoj Prabhu B <bmanoj@codeaurora.org>