Document the convention to use variables prefixed by VIRTUAL_RUNTIME.
Add references to the new term where possible.
Another reason is that such variables are recommended
in a warning issued by meta/classes-global/insane.bbclass
(From yocto-docs rev: 11e1ba97edac979868f199e43c1004db6678044c)
Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Reported-by: Tim Orling <ticotimo@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>