soc: qcom: pil: Fix CONFIG_MSM_PIL not defined compile fail

Need to add define for trace_pil_notify when CONFIG_MSM_PIL
not defined, because it is used outside of pil driver.

Change-Id: If88b6ece834c613a6e3f7eb2f9eb91092fa3a8d9
Signed-off-by: Maria Yu <aiquny@codeaurora.org>