pm-graph v5.13

pm-graph v5.13

 - fix link to pm-graph homepage and in comments
 - add usleep_range() kprobe to -dev mode
 - add SIGUSR1 and SIGUSR2 to list of captured signals
 - kill -s USR1 causes sleepgraph to print out stack trace
 - kill -s USR2 prints stack trace and exits
 - stack trace is also printed to -result file
 - add legacy support for /sys/kernel/debug/tracing/
 - allow multiple instances of trace funcs in the same phase
 - update javascript to draw device detail for multiple trace func instances
 - add -debugtiming option to print out timestamps on all outputs

Signed-off-by: Todd Brandt <todd.e.brandt@intel.com>
Link: https://patch.msgid.link/20240912055956.30108-1-todd.e.brandt@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>