msm: ipa: Ignore force clear requests on APQ platform

On APQ platform, there is no local modem. Force clear
enabling/disabling are irrelevant due to this.
This change ignores these requests.

Change-Id: Iff810f5c1ae3495f4f3763d0d12f150a20cf59c1
Signed-off-by: Ghanim Fodi <gfodi@codeaurora.org>