recipetool: create: Only include the expected SRC_URI checksums

recipetool: create: Only include the expected SRC_URI checksums

Rather than including all SRC_URI checksums, include the ones that are
expected. These are the same as are output if no checksums are included
when building the recipe.

Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>