coresight: Add snapshot of Coresight hwevent driver

Add snapshot for coresight hwevent driver from msm-4.19
commit 64be469bda3ae ("power: smb1390-psy: Configure IREV
and main's ICL to prevent IREV condition").
Make necessary change to adopt coresight framework change.

Change-Id: I3f0d9259d4d0f5dd12d76b7fbdde92fcb681f4b6
Signed-off-by: Tingwei Zhang <tingwei@codeaurora.org>