Fix: event notifier: set eval_capture to false for kprobe, kretprobe and uprobe

Fix: event notifier: set eval_capture to false for kprobe, kretprobe and uprobe

Trying to capture fields for kprobe, kretprobe, uprobe, event
notifications will end up dereferencing NULL pointers. Prevent execution
of capture code in those cases.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: If86b0602351fb42047b184608b28108e9de0d183