buildsys: use kbuild style
buildsys: use kbuild style

Signed-off-by: Bernhard Reutner-Fischer <ce1ac9e9ad16abccd7821f371ad381197b4768ac@gmail.com>

hjl-tools/uClibc,hjl-tools/uClibc,foss-xtensa/uClibc,m-labs/uclibc-lm32,hwoarang/uClibc,kraj/uClibc,kraj/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,groundwater/uClibc,wbx-github/uclibc-ng,kraj/uClibc,hjl-tools/uClibc,hwoarang/uClibc,ysat0/uClibc,majek/uclibc-vx32,brgl/uclibc-ng,czankel/xtensa-uclibc,groundwater/uClibc,ysat0/uClibc,m-labs/uclibc-lm32,ddcc/klee-uclibc-0.9.33.2,czankel/xtensa-uclibc,atgreen/uClibc-moxie,kraj/uclibc-ng,majek/uclibc-vx32,kraj/uclibc-ng,kraj/uClibc,kraj/uclibc-ng,majek/uclibc-vx32,ffainelli/uClibc,hwoarang/uClibc,mephi42/uClibc,ndmsystems/uClibc,groundwater/uClibc,foss-xtensa/uClibc,czankel/xtensa-uclibc,ddcc/klee-uclibc-0.9.33.2,ndmsystems/uClibc,skristiansson/uClibc-or1k,waweber/uclibc-clang,foss-for-synopsys-dwc-arc-processors/uClibc,wbx-github/uclibc-ng,atgreen/uClibc-moxie,waweber/uclibc-clang,skristiansson/uClibc-or1k,waweber/uclibc-clang,ffainelli/uClibc,m-labs/uclibc-lm32,ffainelli/uClibc,mephi42/uClibc,m-labs/uclibc-lm32,wbx-github/uclibc-ng,ndmsystems/uClibc,ysat0/uClibc,czankel/xtensa-uclibc,foss-xtensa/uClibc,majek/uclibc-vx32,atgreen/uClibc-moxie,ffainelli/uClibc,ddcc/klee-uclibc-0.9.33.2,mephi42/uClibc,ysat0/uClibc,skristiansson/uClibc-or1k,hjl-tools/uClibc,groundwater/uClibc,mephi42/uClibc,ddcc/klee-uclibc-0.9.33.2,hjl-tools/uClibc,kraj/uclibc-ng,hwoarang/uClibc,brgl/uclibc-ng,foss-for-synopsys-dwc-arc-processors/uClibc,skristiansson/uClibc-or1k,foss-for-synopsys-dwc-arc-processors/uClibc,atgreen/uClibc-moxie,ndmsystems/uClibc,brgl/uclibc-ng,waweber/uclibc-clang,groundwater/uClibc,brgl/uclibc-ng,foss-xtensa/uClibc,ffainelli/uClibc,wbx-github/uclibc-ng