documentation: Added new appendix for customizing standard SDK

Fixes [YOCTO #8584]

This fix essentially had to document how to add the API
documentation to the standard SDK.  The fix required adding a
new appendix to the SDK manual on how to customize that
standard SDK.  I could not put just one topic in a new appendix
so I also added a sub-section on how to add indidual packages
to the standard SDK.

Other changes here were the introduction of a new file for the new
appendix, updated the mega-manual.xml file so that it would include
the new chapter when the MM was built.  Finally, I added some
cross-referencing to the new appendix from the TOOLCHAIN_HOST_TASK
and TOOLCHAIN_TARGET_TASK variables.  And a cross reference from the
distro features section on the api-documentation bullet.

(From yocto-docs rev: 1fb4321ae42253d1fc9602496b5e9e8b495197dd)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index f0384a8443..9d6fab0c94 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -14426,6 +14426,10 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
                     </literallayout>
                     In this case, a default list of packages is set in this
                     variable, but you can add additional packages to the list.
+                    See the
+                    "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-adding-individual-packages'>Adding Individual Packages to the Standard SDK</ulink>"
+                    section in the Yocto Project Software Development Kit (SDK)
+                    Developer's Guide for more information.
                 </para>
 
                 <para>
@@ -14477,6 +14481,12 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
                     uses when it creates the target part of an SDK
                     (i.e. the part built for the target hardware), which
                     includes libraries and headers.
+                    Use this variable to add individual packages to the
+                    part of the SDK that runs on the target.
+                    See the
+                    "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-adding-individual-packages'>Adding Individual Packages to the Standard SDK</ulink>"
+                    section in the Yocto Project Software Development Kit (SDK)
+                    Developer's Guide for more information.
                 </para>
 
                 <para>