thinkpad-x13s: update firmware (for post 6.3 kernels)

- for the x13s, kernel/firmware/userspace has to be updated in lockstep
- remove previous bins, most were added to linux-firmware
- this is meant to be used in `armbian-firmware-full`, which brings the complete linux-firmware repo
- only new bin is `qcvss8280.mbn` for the interconnect
- `SC8280XP-LENOVO-X13S-tplg.bin` is a symlink to actual sound firmware in linux-firmware
- `a690_gmu.bin` is a symlink to actual GPU firmware in linux-firmware
- `ath11k/WCN6855` has a `hw2.1` symlink pointing to `hw2.0` (in linux-firmware)

qca/hpnv21.b8c

@@ -1 +0,0 @@
-hpnv21.8c

qcom/a690_gmu.bin

@@ -0,0 +1 @@
+a660_gmu.bin

qcom/sc8280xp/SC8280XP-LENOVO-X13S-tplg.bin

@@ -0,0 +1 @@
+LENOVO/21BX/audioreach-tplg.bin