boringssl.sh: patch out setting _WIN32_WINNT

Author: vszakats

boringssl.sh

@@ -106,6 +106,9 @@ _VER="$1"
       options+=' -DBUILD_TOOL=OFF'
       options+=' -DDISABLE_GO=ON'
       options+=' -DDISABLE_PERL=ON'
+
+      # Patch out to avoid redefinition errors
+      sed -i.bak 's/-D_WIN32_WINNT=_WIN32_WINNT_WIN7//g' ./CMakeLists.txt
     else
       # Patch the build to omit debug info. This results in 50% smaller footprint
       # for each ${_BLDDIR}. As of llvm 14.0.6, llvm-strip does an imperfect job