drm/panel: innolux-p079zca: Don't use a table for initting panels

Consensus on the mailing lists is that panels shouldn't use a table of
init commands but should instead use init functions. We'll use the
same concepts as the recently introduced
mipi_dsi_generic_write_seq_multi() to make this clean/easy and also
not bloat the driver too much. Measuring before/after this change:

$ scripts/bloat-o-meter \
  .../before/panel-innolux-p079zca.ko \
  .../after/panel-innolux-p079zca.ko
add/remove: 3/2 grow/shrink: 0/1 up/down: 2356/-1944 (412)
Function                                     old     new   delta
innolux_p097pfg_init                           -    1772   +1772
innolux_p097pfg_init.d                         -     480    +480
innolux_panel_write_multi                      -     104    +104
innolux_panel_prepare                        412     308    -104
.compoundliteral                             480       -    -480
innolux_p097pfg_init_cmds                   1360       -   -1360
Total: Before=5802, After=6214, chg +7.10%

Note that, unlike some other drivers, we actually make this panel
driver _bigger_ by using the new functions. This is because the
innolux-p079zca panel driver didn't have as complex of a table and
thus the old table was more efficient than the code. The bloat is
still not giant (only 412 bytes).

Also note that we can't direclty use
mipi_dsi_generic_write_seq_multi() here because we need to deal with
the crazy "nop" that this driver sends after all commands. This means
that we have to write code that is "inspired" by the new macros.

Since we're touching all the tables, let's also convert hex numbers to
lower case as per kernel conventions.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20240514102056.v5.9.I947e28c81f9ef7dcd3add6e193be72d6f8ea086f@changeidSigned-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240514102056.v5.9.I947e28c81f9ef7dcd3add6e193be72d6f8ea086f@changeid