util-linux: add switch_root to alternatives list
switch_root is provided by both busybox in /sbin/switch_root and util-linux provides one
in /usr/sbin/switch_root, so move util-linux's to sbin and setup ALTERNATIVE_LINK.
(From OE-Core rev:
cac818f0ecd0553b59b967a94766534643fecdf4)
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
