msm: ipa: remove memory allocation for SMEM on APQ platform

On the APQ platform there is no need to allocate SMEM since
there is no local modem.

Acked-by: Tal Gelbard <tgelbard@qti.qualcomm.com>
Change-Id: Ibba748a41ade4ac7421538517f12bdc0432b749f
Signed-off-by: Amir Levy <alevy@codeaurora.org>