linux-postmarketos-allwinner: upgrade to 6.8.4_git20240405 (MR 5008)

- 0003-dts-pinetab-add-missing-bma223-ohci1.patch

  The original patch added a node for BMA223 and a node for ohci1.
  The former is already present in upstream, so the new patch
  0003-dts-pinetab-add-missing-ohci1.patch only adds the latter.

- 0004-arm64-dts-allwinner-Add-bluetooth-node-to-the-PineTa.patch

  The patch is now present in upstream so it has been removed.
  However it's worth noting that upstream's node has the wake GPIOs
  reversed from the original patch. The original patch added:

      device-wake-gpios = <&r_pio 0 6 GPIO_ACTIVE_LOW>; /* PL6 */
      host-wake-gpios = <&r_pio 0 5 GPIO_ACTIVE_HIGH>; /* PL5 */

  ... while upstream has:

      device-wake-gpios = <&r_pio 0 5 GPIO_ACTIVE_LOW>; /* PL5 */
      host-wake-gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */

  This has not been tested on a PineTab.

- 0005-dts-pinetab-make-audio-routing-consistent-with-pinep.patch

  The first hunk of the patch is in upstream and has been removed.

- 0013-Revert-usb-quirks-Add-USB_QUIRK_RESET-for-Quectel-EG25G-Modem.patch

  This patch reverted upstream commit that was present until v6.7
  ( https://codeberg.org/megi/linux/commit/f9e3e7ea4ea5452e2c149acbe2a958751046ca29 )
  but is not present in v6.8, so the patch has been removed.

- 0014-usb-serial-option-add-reset-resume-callback-for-WWAN.patch

  The patch is now present in upstream so it has been removed.