coresight: add event to abort tracing on kernel panic

Add trace event to control aborting CoreSight trace
dynamically based on module parameter. This will help
user to enable/disable coresight_abort on kernel panic.
Also moved CREATE_TRACE_POINTS to panic.c from fault.c
since panic.c is common and shared between 32 and 64
bit platforms.

Change-Id: I51e4049b07adeca571b1a98cd90ff5f307d1d794
Signed-off-by: Sarang Joshi <spjoshi@codeaurora.org>