extrausers.bbclass: Use PACKAGE_INSTALL instead of IMAGE_INSTALL
The initramfs image recipes changed to use PACKAGE_INSTALL
so they will not be affected by IMAGE_INSTALL, and will cause
error when inherit extrausers:
| ERROR: core-image-minimal-initramfs-1.0-r0 do_rootfs:
core-image-minimal-initramfs: usermod command did not succeed.
So use PACKAGE_INSTALL as well in extrausers.bbclass to fix it.
Signed-off-by: Jackie Huang <jackie.huang@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
