python3: add PACKAGECONFIG[editline]

Backport PACKAGECONFIG[editline] from Scarthgap to Kirkstone
because libedit has feature parity with readline but is more
permissively licensed (BSD verses GPLv3). This patch provides
means of enabling editline in a distribution without GPLv3 and
in this case improves Python REPL keyboard support.

(From OE-Core rev: 12dc7d2081a1aaec90ffb3ed6718d757ce14b5ab)

Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

meta/recipes-devtools/python/python3_3.10.14.bb

@@ -106,7 +106,8 @@ CACHED_CONFIGUREVARS = " \
 PACKAGECONFIG:class-target ??= "readline gdbm ${@bb.utils.filter('DISTRO_FEATURES', 'lto', d)}"
 PACKAGECONFIG:class-native ??= "readline gdbm"
 PACKAGECONFIG:class-nativesdk ??= "readline gdbm"
-PACKAGECONFIG[readline] = ",,readline"
+PACKAGECONFIG[readline] = "--with-readline=readline,,readline,,,editline"
+PACKAGECONFIG[editline] = "--with-readline=editline,,libedit,,,readline"
 # Use profile guided optimisation by running PyBench inside qemu-user
 PACKAGECONFIG[pgo] = "--enable-optimizations,,qemu-native"
 PACKAGECONFIG[tk] = ",,tk"
@@ -118,7 +119,7 @@ do_configure:prepend () {
     cat > ${B}/Modules/Setup.local << EOF
 *disabled*
 ${@bb.utils.contains('PACKAGECONFIG', 'gdbm', '', '_gdbm _dbm', d)}
-${@bb.utils.contains('PACKAGECONFIG', 'readline', '', 'readline', d)}
+${@bb.utils.contains_any('PACKAGECONFIG', 'readline editline', '', 'readline', d)}
 EOF
 }