Trying to run benchmarks on ARM32 fails during build with:

```
Compiling libToCString.c (for libToCString.so)
Compiling libToJavaString.c (for libToJavaString.so)
/home/pi/shipilev-jdk/test/micro/org/openjdk/bench/java/lang/foreign/libToCString.c: In function 'Java_org_openjdk_bench_java_lang_foreign_ToCStringTest_writeString':
/home/pi/shipilev-jdk/test/micro/org/openjdk/bench/java/lang/foreign/libToCString.c:30:18: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
   30 | jlong addr = (jlong)(void*)str;
      | ^
cc1: all warnings being treated as errors
gmake[3]: *** [test/BuildMicrobenchmark.gmk:156: /home/pi/shipilev-jdk/build/linux-arm-server-fastdebug/support/test/micro/native/support/libToCString/libToCString.o] Error 1
gmake[2]: *** [make/Main.gmk:781: build-microbenchmark] Error 2
gmake[2]: *** Waiting for unfinished jobs....

```