kernel_android: create fastboot image in DEPLOYDIR not DEPLOY_DIR_IMAGE

* DEPLOYDIR is tracked by sstate code, so fastboot image was missing after
  kernel was reused from sstate-cache, also remove unneeded copy

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
meta-asus: replace netbase bbappend with init-ifupdown
Merge branch 'shr'