[24] JEP 501: Deprecate the 32-bit x86 Port for Removal

[mpalat]

ref: https://openjdk.org/jeps/501
Summary
Deprecate the 32-bit x86 port, with the intent to remove it in a future release. This will thereby deprecate the Linux 32-bit x86 port, which is the only 32-bit x86 port remaining in the JDK. It will also, effectively, deprecate any remaining downstream 32-bit x86 ports. After the 32-bit x86 port is removed, the architecture-agnostic Zero port will be the only way to run Java programs on 32-bit x86 processors.