Merge pull request #54260 from alishaIBM/installdoc3

4.12 install doc updates from IBM P

Author: stevsmit

modules/minimum-ibm-power-system-requirements.adoc

@@ -9,7 +9,12 @@
 
 You can install {product-title} version {product-version} on the following IBM hardware:
 
-* IBM Power8, Power9, or Power10 processor-based systems
+* IBM Power9 or Power10 processor-based systems
+
+[NOTE]
+====
+Support for {op-system} functionality for all IBM POWER8 models, IBM POWER9 AC922, IBM POWER9 IC922, and IBM POWER9 LC922 is deprecated. These hardware models remain fully supported in {product-title} 4.12. However, Red Hat recommends that you use later hardware models.
+====
 
 [discrete]
 == Hardware requirements
@@ -19,7 +24,7 @@ You can install {product-title} version {product-version} on the following IBM h
 [discrete]
 == Operating system requirements
 
-* One instance of an IBM Power8, Power9, or Power10 processor-based system
+* One instance of an IBM Power9 or Power10 processor-based system
 
 On your IBM Power instance, set up:
 

modules/recommended-ibm-power-system-requirements.adoc

@@ -15,7 +15,7 @@
 [discrete]
 == Operating system requirements
 
-* One instance of an IBM Power8, Power9, or Power10 processor-based system
+* One instance of an IBM Power9 or Power10 processor-based system
 
 On your IBM Power instance, set up: