bind: update to 9.12.1

bind: update to 9.12.1

LIC_FILES_CHKSUM changed do to updated year

removed:
dont-test-on-host.patch, no longer implemented
drop use-python3-and-fix-install-lib-path.patch, they added the ability to pass in lib dir loctions
drop bind-confgen-build-unix.o-once.patch, fix included in update

Refresh other patches:
add python3 flag for PACKAGECONFIG to pull in python
add new config option --with-eddsa=

[v2]
Remove python3 in default PACKACKECONFIG
include https://patchwork.openembedded.org/patch/148257/
Because of the newly added dependency on meta-python, the python(3)
packageconfig is no longer "default-on".

Signed-off-by: Martin Hundebøll <mnhu@prevas.dk>
[v3]
Made formating and spelling changes per Martin

[v4]
Minor typo fixes
cleanup python3 support

Signed-off-by: Armin Kuster <akuster808@gmail.com>
Acked-by: Martin Hundebøll <mnhu@prevas.dk>
Signed-off-by: Armin Kuster <akuster808@gmail.com>