all: fix file permissions
all: fix file permissions

Remove execution permission on CONTRIBUTING.

Change-Id: I7b256d8773f775374b8d1b9bc41ea79710feff64
Signed-off-by: Markus Metzger <5f675b2b36595f90898e014b548ff7d9bbff2ab7@intel.com>

01org/processor-trace,01org/processor-trace,01org/processor-trace