tests: cleanup some old fixme

Signed-off-by: Jean Privat <jean@pryen.org>
tests: factorize some sav in sav/nitg-common

Signed-off-by: Jean Privat <jean@pryen.org>
tests: reactivate init_inherit and init_linext

Signed-off-by: Jean Privat <jean@pryen.org>
tests: add sav/nitg-sg/fixme/test_platform_android.res as UNDEFINED

Signed-off-by: Jean Privat <jean@pryen.org>
tests: remove sav/nitc/base_for_nullable*.res

Signed-off-by: Jean Privat <jean@pryen.org>
tests: add nitdoc to nitg-g.skip

Signed-off-by: Jean Privat <jean@pryen.org>
tests: remove removed tests from *.skip files

Signed-off-by: Jean Privat <jean@pryen.org>