RFR (S) 8242424: Deprecate InitialBootClassLoaderMetaspaceSize

[coleen.phillimore at oracle.com]

Also:
8243147: Deprecate UseLargePagesInMetaspace

Summary: mark these options for deprecation

Tested with tier1-3.

open webrev at http://cr.openjdk.java.net/~coleenp/2020/8242424.01/webrev
bug link https://bugs.openjdk.java.net/browse/JDK-8242424
bug link https://bugs.openjdk.java.net/browse/JDK-8243147

Thanks,
Coleen