[FFI]Inline the missing libc functions for symbol lookup on AIX

[ChengJin01]

The changes aim to support the symbol lookup via FFI for
the missing libc functions in loading the default library on
AIX by inlining their address into a function list in native to
ensure they are correctly invoked with the native address
fetched in the FFI code.

Signed-off-by: ChengJin01 jincheng@ca.ibm.com

[ChengJin01]

The PR include pretty much the same changes as ibmruntimes/openj9-openjdk-jdk19#75 with the updated APIs specified in JDK20 as follows:

• MemoryAddress is replaced with MemorySegment
• MemorySession is replaced with SegmentScope

Reviewer: @pshipton
FYI: @tajila

[pshipton]

jenkins compile aix jdk20

[pshipton]

It doesn't compile

18:57:37  /home/jenkins/workspace/Build_JDK20_ppc64_aix_Personal/src/java.base/share/classes/jdk/internal/foreign/SystemLookup.java:103: error: cannot find symbol
18:57:37                  MemorySegment funcs = MemorySegment.ofAddress(funcsLibLookup.lookup("funcs").orElseThrow().address(),
18:57:37                                                                              ^
18:57:37    symbol:   method lookup(String)
18:57:37    location: variable funcsLibLookup of type SymbolLookup

[ChengJin01]

18:57:37 /home/jenkins/workspace/Build_JDK20_ppc64_aix_Personal/src/java.base/share/classes/jdk/internal/foreign/SystemLookup.java:103: error: cannot find symbol
18:57:37 MemorySegment funcs = MemorySegment.ofAddress(funcsLibLookup.lookup("funcs").orElseThrow().address(),
18:57:37 ^
18:57:37 symbol: method lookup(String)
18:57:37 location: variable funcsLibLookup of type SymbolLookup

Fixed as the method lookup was replaced with find in SymbolLookup.java since JDK20.

[pshipton]

jenkins compile aix jdk20