[armel/Linux] Fix armel build (#1609)

Option '-DARM_SOFTFP' not passed after #27077 which required for armel build.
This commit fix it.

diff --git a/eng/native/gen-buildsys.sh b/eng/native/gen-buildsys.sh
index 42fbb7e..32e82f2 100755 (executable)
--- a/eng/native/gen-buildsys.sh
+++ b/eng/native/gen-buildsys.sh
@@ -167,6 +167,10 @@ if [ "$CROSSCOMPILE" == "1" ]; then
     cmake_extra_defines="$cmake_extra_defines -DCMAKE_TOOLCHAIN_FILE=$scriptroot/../common/cross/toolchain.cmake"
 fi
 
+if [ "$build_arch" == "armel" ]; then
+    cmake_extra_defines="$cmake_extra_defines -DARM_SOFTFP=1"
+fi
+
 cmake_command=$(command -v cmake)
 
 if [[ "$scan_build" == "ON" && "$SCAN_BUILD_COMMAND" != "" ]]; then