binutils: upgrade to version 2.20.1

Added a entry for bugtracker.
updated LICENSE
updated LIC_FILES_CHKSUM

The x86 build of binutils is working fine.

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>

meta/packages/binutils/binutils_2.20.1.bb

@@ -0,0 +1,33 @@
+require binutils.inc
+LICENSE = "GPLv2 & LGPLv2 & LGPLv2.1 & GPLv3 & LGPLv3"
+
+PR = "r1"
+
+LIC_FILES_CHKSUM="\
+    file://src-release;endline=17;md5=4830a9ef968f3b18dd5e9f2c00db2d35\
+    file://COPYING;md5=59530bdf33659b29e73d4adb9f9f6552\
+    file://COPYING.LIB;md5=9f604d8a4f8e74f4f5140845a21b6674\
+    file://COPYING3;md5=d32239bcb673463ab874e80d47fae504\
+    file://COPYING3.LIB;md5=6a6a8e020838b23406c81b19c1d46df6\
+    file://gas/COPYING;md5=d32239bcb673463ab874e80d47fae504\
+    file://include/COPYING;md5=59530bdf33659b29e73d4adb9f9f6552\
+    file://include/COPYING3;md5=d32239bcb673463ab874e80d47fae504\
+    file://libiberty/COPYING.LIB;md5=a916467b91076e631dd8edb7424769c7\
+    file://bfd/COPYING;md5=d32239bcb673463ab874e80d47fae504\
+    "
+
+SRC_URI = "\
+     ${GNU_MIRROR}/binutils/binutils-${PV}.tar.bz2;name=tarball \
+     file://binutils-uclibc-100-uclibc-conf.patch \
+     file://110-arm-eabi-conf.patch \
+     file://binutils-uclibc-300-001_ld_makefile_patch.patch \
+     file://binutils-uclibc-300-006_better_file_error.patch \
+     file://binutils-uclibc-300-012_check_ldrunpath_length.patch \
+     file://binutils-uclibc-gas-needs-libm.patch \
+     file://binutils-x86_64_i386_biarch.patch \
+     "
+
+# powerpc patches
+SRC_URI += "\
+     file://binutils-2.16.1-e300c2c3.patch \
+     "