sparc: disable cancellable system, as it fails in strange ways right now
sparc: disable cancellable system, as it fails in strange ways right now

Signed-off-by: Austin Foxley <65462a1d10372f5df6b6641242ca623823c369f3@cetoncorp.com>

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