android_systemimage_defaults is deleted and android_filesystem_defaults
is created so that we can have defaults not only for
android_system_image, but also all android_filesystem modules and its
derivatives.
Also, change adds a check which ensures that the partition_type of the
filesystem and its defaults are the same.
Bug: 330665150
Test: m
Change-Id: If635c794534ed89d264eaf7dfc406a8245b8e9f0
f46b1af969