Group AVRx4 boards together

platformio.ini

   Adafruit NeoPixel=https://github.com/p3p/Adafruit_NeoPixel/archive/master.zip
 
 #
+# Sanguinololu (ATmega644p)
+#
+[env:sanguino_atmega644p]
+platform      = atmelavr
+framework     = arduino
+board         = sanguino_atmega644p
+build_flags   = ${common.build_flags}
+lib_deps      = ${common.lib_deps}
+  TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
+src_filter    = ${common.default_src_filter} +<src/HAL/HAL_AVR>
+monitor_speed = 250000
+
+#
+# Sanguinololu (ATmega1284p)
+#
+[env:sanguino_atmega1284p]
+platform      = atmelavr
+framework     = arduino
+board         = sanguino_atmega1284p
+build_flags   = ${common.build_flags}
+lib_deps      = ${common.lib_deps}
+  TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
+src_filter    = ${common.default_src_filter} +<src/HAL/HAL_AVR>
+monitor_speed = 250000
+
+#
 # Melzi and clones (ATmega1284p)
 #
 [env:melzi]
 monitor_speed     = 250000
 
 #
-# Sanguinololu (ATmega644p)
-#
-[env:sanguino_atmega644p]
-platform      = atmelavr
-framework     = arduino
-board         = sanguino_atmega644p
-build_flags   = ${common.build_flags}
-lib_deps      = ${common.lib_deps}
-  TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_AVR>
-monitor_speed = 250000
-
-#
-# Sanguinololu (ATmega1284p)
-#
-[env:sanguino_atmega1284p]
-platform      = atmelavr
-framework     = arduino
-board         = sanguino_atmega1284p
-build_flags   = ${common.build_flags}
-lib_deps      = ${common.lib_deps}
-  TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_AVR>
-monitor_speed = 250000
-
-#
 # STM32F103RE
 #
 [env:STM32F103RE]