trace: irqsoff: fix irqs disabled tracking

Current tracking for irqs disabled is between calls of hardirqs_on
to hardirqs_off, it should be reverse.

fix the issue by correcting the tracking.

Change-Id: I84bbe7fb906a04cfa5f779fa111e2aef9844969a
Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>