Also add a testcase for sha1_check().
Test: mmma bootable/recovery; recovery_component_test passes.
Change-Id: I4d06d551a771aec84e460148544f68b247a7e721
So that we can write native tests for updater functions. This CL adds a
testcase for getprop() function.
Test: mmma bootable/recovery; Run recovery_component_test on device.
Change-Id: Iff4c1ff63c5c71aded2f9686fed6b71cc298c228