Clarify requirements for AIX runtimes (#2085)

Signed-off-by: Stewart X Addison <sxa@redhat.com>

content/asciidoc-pages/supported-platforms/index.adoc

@@ -65,7 +65,7 @@ icon:check[] - Supported, icon:docker[] - Docker image available, icon:times[] -
 | Ubuntu 18.04 | icon:check[] | icon:check[] | icon:check[] | icon:times[]
 
 5+h| Linux (s390x) footnote:glibc217[]
-| RHEL / UBI 9.x | icon:times[] footnote:nojit[JDK8 on s390 has no JIT so is unsupported.] | icon:check[] | icon:check[] | icon:times[]
+| RHEL / UBI 9.x | icon:times[] footnote:nojit[JDK8 on s390x has no JIT so is unsupported.] | icon:check[] | icon:check[] | icon:times[]
 | RHEL / UBI 8.x | icon:times[] footnote:nojit[] | icon:check[] | icon:check[] | icon:times[]
 | RHEL 7.x | icon:times[] footnote:nojit[] | icon:check[] | icon:check[] | icon:times[]
 | Ubuntu 22.04 | icon:times[] footnote:nojit[] | icon:check[] icon:docker[] | icon:check[] icon:docker[] | icon:times[]
@@ -87,10 +87,8 @@ icon:check[] - Supported, icon:docker[] - Docker image available, icon:times[] -
 | Solaris 11 | icon:check[] | icon:times[] | icon:times[] | icon:times[]
 | Solaris 10u11 | icon:check[] | icon:times[] | icon:times[] | icon:times[]
 
-5+h| AIX (PowerPC 64-bit Big Endian)
+5+h| AIX (PowerPC 64-bit Big Endian) footnote:aix71[Running the latest versions on AIX 7.1 is no longer supported. The last versions which targetted able to run on AIX 7.1 were jdk8u362, jdk-11.0.18 and jdk-17.0.8] footnote:alxrt[Requires XLC runtime packages from the compiler or standalone for XLC 13 for JDK8: https://www.ibm.com/support/pages/ibm-xl-cc-runtime-aix-131 or XLC 16 for JDK11+: https://www.ibm.com/support/pages/ibm-xl-cc-runtime-aix-161]
 | AIX 7.2 | icon:check[] | icon:check[] | icon:check[] | icon:times[]
-| AIX 7.1 TL5 SP5 | icon:check[] | icon:check[] | icon:check[] | icon:times[]
-| AIX 7.1 TL4 | icon:check[] | icon:check[]| icon:check[] | icon:times[]
 |===
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