atrace: make clock & bus bw tracing optional

This change makes enabling clock tracing and bus bandwidth tracing depend on
whether the device's kernel supports these features.  If it's not supported it
will be skipped.

Change-Id: I51d57299693635b0ecebb75de5dccd5b62d47be3
1 file changed
tree: edbda0151e43395e79d21303b442782a15f86797
  1. cmds/