wiringpi: fix static linking
Update patch 0001-Adjust-for-buildroot-build.patch to
use real static linking (command line flag '-static' for
target gpio-static).
Fixes [1]:
[Link]
.../output/host/usr/lib/gcc/powerpc-buildroot-linux-uclibc/5.4.0/libgcc.a(unwind-dw2-fde-dip.o): In function `_Unwind_Find_FDE':
...output/build/host-gcc-final-5.4.0/build/powerpc-buildroot-linux-uclibc/libgcc/../../../libgcc/unwind-dw2-fde-dip.c:465: undefined reference to `dl_iterate_phdr'
collect2: error: ld returned 1 exit status
make[1]: *** [gpio-static] Error 1
make[1]: Leaving directory `.../output/build/wiringpi-2.32/gpio'
[1] http://autobuild.buildroot.net/results/
b905617dda0e120d04c54daf7cae2bad236ac767
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>