Use coccinelle to check patch in Ubuntu 14.04

In Ubuntu14.04,when running coccinelle,it will fail. So we install it manually
to make patch check.

1. install from its git repo: https://github.com/coccinelle/coccinelle.git

2. install the packedge mention in install.txt

3. ./autogen
   ./configure
   ./make
   ./make install

4. cd in a kernel directory,run:

   make coccicheck MODE=report M=arch/arm64/mm

   It will check all the patch under,e.g. arch/arm64/mm