ASoC: cs47l35: use dsp running flag for dsp status

ASoC: cs47l35: use dsp running flag for dsp status

instead of checking DSP memory address for DSP core status,
check the flag from wm_adsp to determine algorithm status.

Change-Id: I846afc671e708dedd9af52000a7eb76cc39adc3b
Signed-off-by: Yoon (Seungyoon) Lee <w22905@motorola.com>
Reviewed-on: https://gerrit.mot.com/1346616
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Zhengming Yao <yaozm1@mt.com>
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
Submit-Approved: Jira Key