classes/populate_sdk_ext: fix task dependency regression
Fix a regression caused by OE-Core revision
eabeb26335b1a4eb1e68218160dbdbe8fdf36272 where we lost the task
dependency on packages in TOOLCHAIN_HOST_TASK (such as
meta-environment-extsdk-${MACHINE}) which led to errors about missing
packages when building the extensible SDK. This happened because I only
moved half of the dependencies coming from the standard SDK task to
do_sdk_depends.
While I'm at it, tidy up the do_populate_sdk_ext[depends] line.
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
