android-sdk-meta is a collection of meta packages, so their Depends: are to pull in packages as a group. The udev rules are in android-sdk-platform-tools-common, which is "Architecture: all".
It seems that valgrind was removed permanently from buster/armel. So these issues can be solved in one of two simple ways: * removing armel mips mipsel mips64el from the supported architectures * dropping the Depends: on dexdump and/or dmtracedump only for armel mips mipsel mips64el Both are fine by me and easy to do.

