drm/connector: Remove usage of the deprecated ida_simple_xxx API

Use ida_alloc_xxx()/ida_free() instead of
ida_simple_get()/ida_simple_remove().
The latter is deprecated and more verbose.

Signed-off-by: Bo Liu <liubo03@inspur.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220617082319.7599-1-liubo03@inspur.com
Link: https://patchwork.freedesktop.org/patch/msgid/20220621190055.8323-1-jiangjian@cdjrlc.com