msm: ADSPRPC: Define sdsp_mem ion cma heap for trinket

Define ION heap 22 for sensors usecases, with sdsp_mem.

Change-Id: I64e82482c53f545e6c53ba288cce9e9f435cf70e
Acked-by: Vishnu Karthik D <vikarthi@qti.qualcomm.com>
Signed-off-by: Tharun Kumar Merugu <mtharu@codeaurora.org>