RFR: 8340731: Cleanup remaining IA64 references in hotspot code [v5]

[Amit Kumar]

> This PR cleans up `IA64` entries form hotspot codebase. 
> 
> As mentioned in the JBS, I left `zero` component as-it-is: 
> 
> ./cpu/zero/bytecodeInterpreter_zero.hpp:31:#if defined(PPC) || defined(IA64)
> ./os_cpu/linux_zero/os_linux_zero.cpp:350:#ifdef IA64
> ./os_cpu/linux_zero/os_linux_zero.cpp:351:    // IA64 has two stacks sharing the same area of memory, a normal
> ./os_cpu/linux_zero/os_linux_zero.cpp:360:#endif // IA64
> 
> 
> Fastdebug VM Build on Mac-M1 & Linux/s390x is fine. Tests are in progress.

Amit Kumar has updated the pull request incrementally with one additional commit since the last revision:

  adds portion of comment back

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/22382/files
  - new: https://git.openjdk.org/jdk/pull/22382/files/cabcf178..7a95ebfe

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22382&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22382&range=03-04

  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/22382.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22382/head:pull/22382

PR: https://git.openjdk.org/jdk/pull/22382