poky.yaml.in, system-requirements.rst: update system requirements

- Update system requirements after making tests on basic Docker
  containers of:
  - Ubuntu 22.04
  - Fedora 37
  - OpenSuse Leap 15.4
  - AlmaLinux 9

- Including the need to have the en_US.UTF-8 locale on the system.

- Rename the CENTOS8_HOST_PACKAGES_ESSENTIAL macro to ALMALINUX_HOST_PACKAGES_ESSENTIAL
  As for the other distros, stop refering to a specific version of AlmaLinux. We mention
  the supported versions in the system-requirements.rst file anyway.

- Remove the unused CENTOS7_HOST_PACKAGES_ESSENTIAL macro

(From yocto-docs rev: f8b8680ff1f54b02572f240966169b9e129b05b1)

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Reported-by: Randy MacLeod <randy.macleod@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/documentation/ref-manual/system-requirements.rst b/documentation/ref-manual/system-requirements.rst
index 38d4aaf5a7..1bbe7b894d 100644
--- a/documentation/ref-manual/system-requirements.rst
+++ b/documentation/ref-manual/system-requirements.rst
@@ -168,16 +168,16 @@ supported openSUSE Linux distribution:
       &PIP3_HOST_PACKAGES_DOC;
 
 
-AlmaLinux-8 Packages
---------------------
+AlmaLinux Packages
+------------------
 
 Here are the required packages by function given a
-supported AlmaLinux-8 Linux distribution:
+supported AlmaLinux Linux distribution:
 
 -  *Essentials:* Packages needed to build an image for a headless
    system::
 
-      $ sudo dnf install &CENTOS8_HOST_PACKAGES_ESSENTIAL;
+      $ sudo dnf install &ALMALINUX8_HOST_PACKAGES_ESSENTIAL;
 
    .. note::
 
@@ -186,7 +186,7 @@ supported AlmaLinux-8 Linux distribution:
          easy installation of packages not included in enterprise Linux
          by default. You need to install these packages separately.
 
-      -  The ``PowerTools`` repo provides additional packages such as
+      -  The ``PowerTools/CRB`` repo provides additional packages such as
          ``rpcgen`` and ``texinfo``.
 
       -  The ``makecache`` command consumes additional Metadata from