task-core-boot.bb: Add PACKAGE definition to facilitate multilib
If there is no PACKAGES defined in bb file, its default definition would
be "${PN}-dbg ${PN} ${PN}-doc ${PN}-dev ${PN}-staticdev ${PN}-locale".
In multilib case, ${PN} is extended with ${MLPREFIX}, so there is no
rename occurred for the PACKAGES. Therefore for task-core-boot,
RDEPENDS_lib32-task-core-boot will be empty, resulting busybox,
tinylogin, etc. are not bulit out.
This fixed the issue that /bin/sh is not provided while do_rootfs.
Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
