Setting 644 permissions for devel package is removed. The all files in
the devel package are created with 644 permission. As a result, executable
files don't work when building out-of-tree module because they don't have a
execution permission.
Change-Id: I79854937593af982ed829a39446273e89e91a5f5 Signed-off-by: Jaechul Lee <jcsing.lee@samsung.com>