[tools] ccache: upgrade to version 3.1.9

git-svn-id: svn://svn.openwrt.org/openwrt@35821 3c298f89-4303-0410-b956-a3cf2f4a3e73
[tools] sed: upgrade to version 4.2.2

git-svn-id: svn://svn.openwrt.org/openwrt@35822 3c298f89-4303-0410-b956-a3cf2f4a3e73
[tools] gmp: upgrade to version 5.1.1

git-svn-id: svn://svn.openwrt.org/openwrt@35823 3c298f89-4303-0410-b956-a3cf2f4a3e73
[tools] flex: upgrade to version 2.5.37

git-svn-id: svn://svn.openwrt.org/openwrt@35824 3c298f89-4303-0410-b956-a3cf2f4a3e73
[tools] e2fsprogs: upgrade to version 1.42.7

git-svn-id: svn://svn.openwrt.org/openwrt@35825 3c298f89-4303-0410-b956-a3cf2f4a3e73
[tools] cmake: upgrade to version 2.8.10.2

git-svn-id: svn://svn.openwrt.org/openwrt@35826 3c298f89-4303-0410-b956-a3cf2f4a3e73
[tools] bison: upgrade to version 2.7

git-svn-id: svn://svn.openwrt.org/openwrt@35827 3c298f89-4303-0410-b956-a3cf2f4a3e73
[tools] mpfr: upgrade to 3.1.1

git-svn-id: svn://svn.openwrt.org/openwrt@35828 3c298f89-4303-0410-b956-a3cf2f4a3e73