Widen sof-firmware install to all Intel SOF audio platforms

The sof-audio-pci-intel-* driver family needs sof-firmware to boot the
DSP, but mainline linux only optdeps it, so affected installs came up
with a Dummy Output sink only. Replace the Panther Lake check with
omarchy-hw-intel-sof, which detects any Intel PCI audio controller.

Ports ffa81021 from master, which adapts basecamp/omarchy#6200.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

bin/omarchy-hw-intel-sof

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+# omarchy:summary=Detect an Intel SOF-capable audio DSP
+
+lspci | grep -qiE '(Multimedia audio controller|Audio device).*Intel'

install/hardware/intel/sof-firmware.sh

@@ -1,8 +1,7 @@
-# Install Sound Open Firmware for the audio DSP on non-XPS Intel Panther
-# Lake systems. XPS PTL stays on linux-ptl, which hard-deps sof-firmware.
-# Mainline `linux` only optdeps it, so without this the DSP fails to boot
-# and only auto_null shows up in PipeWire.
+# Install Sound Open Firmware for Intel audio DSPs. The sof-audio-pci-intel-*
+# driver family requires this firmware; without it PipeWire exposes only a
+# Dummy Output sink.
 
-if omarchy-hw-intel-ptl && ! omarchy-hw-match "XPS"; then
+if omarchy-hw-intel-sof; then
   omarchy-pkg-add sof-firmware
 fi