Update avr-gcc to 4.9.2-atmel-3.5.3-arduino

The avr toolchain has been updated to the Atmel bundle version 3.5.3

Author: cmaglie

build/build.xml

@@ -91,7 +91,7 @@
 
   <property name="ARDUINO-BUILDER-VERSION" value="1.3.19" />
   <property name="LIBLISTSERIAL-VERSION" value="1.1.3" />
-  <property name="AVRGCC-VERSION" value="4.9.2-arduino4" />
+  <property name="AVRGCC-VERSION" value="4.9.2-atmel3.5.3-arduino" />
   <property name="AVRDUDE-VERSION" value="6.3.0-arduino2" />
 
   <!-- Libraries required for running arduino -->

build/linux/avr-gcc-4.9.2-arduino4-armhf-pc-linux-gnu.tar.bz2.sha

@@ -0,0 +1 @@
+9b6e398caf779bdac5e2666c1aac99b481b49490

build/linux/avr-gcc-4.9.2-arduino4-i686-pc-linux-gnu.tar.bz2.sha

@@ -0,0 +1 @@
+4f20340c804da0218d6840983bbe6d84fb7e4b9a

build/linux/avr-gcc-4.9.2-arduino4-x86_64-pc-linux-gnu.tar.bz2.sha

@@ -0,0 +1 @@
+40825882ad0a725c3d500b8fa7ef4c8a72ed7613

build/linux/avr-gcc-4.9.2-atmel3.5.3-arduino-armhf-pc-linux-gnu.tar.bz2.sha

@@ -0,0 +1 @@
+9c19956324bcee6818858489dd699949363934f7

build/linux/avr-gcc-4.9.2-atmel3.5.3-arduino-i686-pc-linux-gnu.tar.bz2.sha

@@ -12,7 +12,7 @@ ARDUINO 1.6.10
 * Solved a bug that crashed the IDE with some exotic serial devices
 
 [core]
-* avr: toolchain updated to latest Atmel release 3.5.2 http://distribute.atmel.no/tools/opensource/Atmel-AVR-GNU-Toolchain/3.5.2/
+* avr: toolchain updated to latest Atmel release 3.5.3 http://distribute.atmel.no/tools/opensource/Atmel-AVR-GNU-Toolchain/3.5.3/
   The updated tools are now binutils-2.26, gcc-4.9.2, avr-libc-2.0.0, gdb-7.8
 * avr: avrdude updated to version 6.3
 * fixed a small bug that caused a compile error on some 3rd party derivatives boards based on Leonardo