drm_print: add _ddebug descriptor to drm_*dbg prototypes

upgrade the callchain to drm_dbg() and drm_dev_dbg(); add a struct
_ddebug ptr parameter to them, and supply that additional param by
replacing the '_no_desc' flavor of dyndbg Factory macro currently used
with the flavor that supplies the descriptor.

NOTES:

The descriptor gives these fns access to the decorator flags, but they
do none of the dynamic-prefixing done by dynamic_emit_prefix(), which
is currently static.

DRM already has conventions for logging/messaging; just tossing
optional decorations on top probably wouldn't help.  Instead, existing
flags (or new ones, perhaps 'sd' ala lspci) can be used to make
current message conventions optional.  This suggests a new
drmdbg_prefix_emit() to handle prefixing locally.

For CONFIG_DRM_USE_DYNAMIC_DEBUG=N, just pass null descriptor.

desc->class_id is redundant with category parameter, but its
availability is dependent on desc.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Link: https://lore.kernel.org/r/20220912052852.1123868-10-jim.cromie@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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