ecryptfs-utils: fix race condition in do_install

The rootsbindir is a self-defined directory. The install-rootsbinPROGRAMS
is actually treated as part of install-data instead of install-exec.

Do making install-exec-am depend on it actually results in the following
Makefile contents.

  install-data-am: install-rootsbinPROGRAMS
  install-exec-am: install-binPROGRAMS install-binSCRIPTS
          @$(NORMAL_INSTALL)
          $(MAKE) $(AM_MAKEFLAGS) install-exec-hook
  install-exec-hook:      install-rootsbinPROGRAMS

And this results in race condition as two install commands of the same
file running at the same time. Error message is like below.

  TOPDIR/tmp-glibc/hosttools/install: cannot create regular file 'TOPDIR/tmp-glibc/work/aarch64-wrs-linux/ecryptfs-utils/111-r0/image/sbin/mount.ecryptfs': File exists

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

recipes-security/ecryptfs-utils/ecryptfs-utils_111.bb

@@ -14,6 +14,7 @@ DEPENDS = "keyutils libgcrypt intltool-native glib-2.0-native"
 SRC_URI = "\
     https://launchpad.net/ecryptfs/trunk/${PV}/+download/${BPN}_${PV}.orig.tar.gz \
     file://ecryptfs-utils-CVE-2016-6224.patch \
+    file://0001-avoid-race-condition.patch \
     file://ecryptfs.service \
     "