packages: bump linux and kernel-firmware so MT7921U flows via pacman

The MT7921U enablement changes the kernel image and the firmware list;
without a REV bump pacman would never offer them and only reflashes
would pick the new driver up. The flash-sync hook then lands the new
kernel on the boot partition.

projects/ArchR/packages/linux-firmware/kernel-firmware/package.mk

@@ -2,6 +2,7 @@
 # Copyright (C) 2016-present Team LibreELEC (https://libreelec.tv)
 
 PKG_NAME="kernel-firmware"
+PKG_REV="2"
 PKG_VERSION="20260110"
 PKG_LICENSE="other"
 PKG_SITE="https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/"

projects/ArchR/packages/linux/package.mk

@@ -3,6 +3,7 @@
 # Copyright (C) 2017-present Team LibreELEC (https://libreelec.tv)
 
 PKG_NAME="linux"
+PKG_REV="2"
 PKG_LICENSE="GPL"
 PKG_SITE="http://www.kernel.org"
 PKG_DEPENDS_HOST="ccache:host openssl:host"