libc: fix typo in statvfs
libc: fix typo in statvfs

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

majek/uclibc-vx32,foss-for-synopsys-dwc-arc-processors/uClibc,ffainelli/uClibc,foss-xtensa/uClibc,brgl/uclibc-ng,hwoarang/uClibc,ffainelli/uClibc,hjl-tools/uClibc,wbx-github/uclibc-ng,groundwater/uClibc,groundwater/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,kraj/uclibc-ng,foss-xtensa/uClibc,foss-xtensa/uClibc,wbx-github/uclibc-ng,waweber/uclibc-clang,hjl-tools/uClibc,waweber/uclibc-clang,ddcc/klee-uclibc-0.9.33.2,mephi42/uClibc,ddcc/klee-uclibc-0.9.33.2,groundwater/uClibc,hwoarang/uClibc,ddcc/klee-uclibc-0.9.33.2,mephi42/uClibc,groundwater/uClibc,mephi42/uClibc,kraj/uClibc,hwoarang/uClibc,kraj/uclibc-ng,brgl/uclibc-ng,hjl-tools/uClibc,wbx-github/uclibc-ng,foss-xtensa/uClibc,waweber/uclibc-clang,mephi42/uClibc,kraj/uClibc,kraj/uclibc-ng,hjl-tools/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,hjl-tools/uClibc,brgl/uclibc-ng,brgl/uclibc-ng,majek/uclibc-vx32,groundwater/uClibc,ddcc/klee-uclibc-0.9.33.2,waweber/uclibc-clang,kraj/uclibc-ng,hwoarang/uClibc,kraj/uClibc,ffainelli/uClibc,ffainelli/uClibc,majek/uclibc-vx32,majek/uclibc-vx32,ffainelli/uClibc,kraj/uClibc,wbx-github/uclibc-ng