firmware-sof-signed: move from cli/amd64 baseline to UEFI common

UEFI boards are predominantly x86 laptops where audio routes through
SOF. Without the firmware the kernel SOF driver probes, fails to
load /lib/firmware/intel/sof-ipc4/<plat>/sof-<plat>.ri, and the
analog / speaker path stays silent (HDMI still works, which is why
many users don't notice until they unplug).

The per-release CLI baseline was the wrong home for this:

  - trixie + sid had it; bookworm / bullseye / jammy / noble /
    oracular never did, so CLI/amd64 was inconsistent across releases.
  - SBC / headless CLI images don't need it and were eating ~7 MB
    of unused blobs.

Move to config/sources/families/include/uefi_common.inc so every UEFI
build (x86 and arm64 — the package is Architecture: all) picks it up
unconditionally; arm64 UEFI gets a few MB of dead blobs in exchange
for not having to gate the line by LINUXFAMILY here.

Author: igorpecovnik

config/optional/architectures/amd64/_config/cli/sid/main/packages

@@ -1,4 +1,3 @@
 gpiod
 bolt
 thunderbolt-tools
-firmware-sof-signed

config/optional/architectures/amd64/_config/cli/trixie/main/packages

@@ -1,4 +1,3 @@
 gpiod
 bolt
 thunderbolt-tools
-firmware-sof-signed

config/sources/families/include/uefi_common.inc

@@ -12,6 +12,14 @@ declare -g BOARD_FIRMWARE_INSTALL="-full"            # Install full firmware for
 declare -g DISTRO_GENERIC_KERNEL=no
 declare -g POWER_MANAGEMENT_FEATURES=yes             # Suspend and resume might work well in UEFI, elsewhere is disabled by default
 
+# Intel SOF (Sound Open Firmware) DSP blobs for Meteor / Lunar / Panther
+# Lake and friends. Most UEFI x86 laptops route audio through SOF — without
+# the firmware the kernel SOF driver probes, fails to load sof-*.ri, and the
+# analog/speaker path stays silent (HDMI still works). Architecture: all
+# package, so adding it for arm64 UEFI is cheap (~7 MB of unused blobs) and
+# avoids a per-family branch here.
+add_packages_to_image firmware-sof-signed
+
 case "${BRANCH}" in
 
 	ddk)