dc3dd: fix build with glibc 2.28
gnulib code in dc3dd relied on internal glibc definitions that are no
longer visible with glibc 2.28. Add a patch based on upstream gnulib to
fix the build.
Fixes:
http://autobuild.buildroot.net/results/552/
552b8e44fe6585f978e2fb7a920057a868cf6689/
http://autobuild.buildroot.net/results/00d/
00d2bf5a4c97bea2ace0427c0bed57e11f9a5f9a/
http://autobuild.buildroot.net/results/17a/
17a9246bfb034c531ec5e27e29d38857e58db271/
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>