remove bits/syscall.h when cleaning
remove bits/syscall.h when cleaning

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