Add `dfu-programmer` to `pacman -S` (#6619)

* Add `dfu-programmer` to `pacman -S` (#6618)

`dfu-programmer` now resides at `extra/dfu-programmer` and is no longer
in the AUR

* Add `--needed` option to `pacman -S` for efficiency

* Fix

* Update util/linux_install.sh

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>

util/linux_install.sh

@@ -61,7 +61,7 @@ elif grep ID /etc/os-release | grep -qE 'debian|ubuntu'; then
 
 elif grep ID /etc/os-release | grep -q 'arch\|manjaro'; then
 	sudo pacman -U https://archive.archlinux.org/packages/a/avr-gcc/avr-gcc-8.3.0-1-x86_64.pkg.tar.xz
-	sudo pacman -S \
+	sudo pacman -S --needed \
 		arm-none-eabi-binutils \
 		arm-none-eabi-gcc \
 		arm-none-eabi-newlib \
@@ -71,6 +71,7 @@ elif grep ID /etc/os-release | grep -q 'arch\|manjaro'; then
 		avr-gcc \
 		base-devel \
 		clang \
+		dfu-programmer \
 		dfu-util \
 		diffutils \
 		gcc \
@@ -79,10 +80,6 @@ elif grep ID /etc/os-release | grep -q 'arch\|manjaro'; then
 		unzip \
 		wget \
 		zip
-	git clone https://aur.archlinux.org/dfu-programmer.git /tmp/dfu-programmer
-	cd /tmp/dfu-programmer || exit 1
-	makepkg -sic
-	rm -rf /tmp/dfu-programmer/
 
 elif grep ID /etc/os-release | grep -q gentoo; then
 	echo "$GENTOO_WARNING" | fmt