- Enable APX EGPRs state save restoration check which triggers synthetic SIGSEGV and verifies modified EGPRs state across OS signal handling for non-product builds to match with corresponding logic in signal handlers.

- Currently we haven't enabled APX support in product builds and intend to do so once entire planned support (JDK-8329030) is validated and checked into JDK-mainline, we are following incremental development approach for APX and hence don't want partial APX support to be enabled in intermediate releases.