build: remove *.lo, *.a, *.la files from all subdirectories on make clean

build: remove *.lo, *.a, *.la files from all subdirectories on make clean

.lo files in stubs/, util/ and libcacard/ were not cleaned.
Fix this.

Cc: Blue Swirl <[email protected]>
Reported-by: Stefan Hajnoczi <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Reviewed-by: Stefan Hajnoczi <[email protected]>
Reviewed-by: Michal Privoznik <[email protected]>
Signed-off-by: Blue Swirl <[email protected]>