check-software-div: Add a new build check for software divide

Update the build checks to include a check for unexpected software
divide operations.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

scripts/ci-build.sh

@@ -56,6 +56,7 @@ for TARGET in test/configs/*.config ; do
     make olddefconfig
     make V=1
     size out/*.elf
+    ./scripts/check-software-div.sh .config out/*.elf
     finish_test mcu_compile "$TARGET"
     cp out/klipper.dict ${DICTDIR}/$(basename ${TARGET} .config).dict
 done