soc: qcom: bgcom: Removes double pointer conflicts on resume/suspend

Use single pointer for bgcom_suspend and bgcom_resume APIs to resolve
device crash on continuous device suspend/resume.

Change-Id: I0cd202e74b98aa2ce2ebcbd6c8092c6b1d95610b
Signed-off-by: Arjun Singh <arsingh@codeaurora.org>