Add native support for linux on ARM Cpu (32 bits)

--
Change-Id: Ia70ca1b8482e10bc1ac91799aa238f8613e5c824
Reviewed-on: https://bazel-review.googlesource.com/#/c/1801
MOS_MIGRATED_REVID=100476467
diff --git a/scripts/bootstrap/compile.sh b/scripts/bootstrap/compile.sh
index 3db29f7..cd7a5b3 100755
--- a/scripts/bootstrap/compile.sh
+++ b/scripts/bootstrap/compile.sh
@@ -93,7 +93,11 @@
   if [ "${MACHINE_IS_64BIT}" = 'yes' ]; then
     PROTOC=${PROTOC:-third_party/protobuf/protoc-linux-x86_64.exe}
   else
-    PROTOC=${PROTOC:-third_party/protobuf/protoc-linux-x86_32.exe}
+    if [ "${MACHINE_IS_ARM}" = 'yes' ]; then
+      PROTOC=${PROTOC:-third_party/protobuf/protoc-linux-arm32.exe}
+    else
+      PROTOC=${PROTOC:-third_party/protobuf/protoc-linux-x86_32.exe}
+    fi
   fi
   ;;