pull from Blackfin repo: optimized byteswap funcs!
pull from Blackfin repo: optimized byteswap funcs!

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