FAQ.md - add information on toolchain for CentOS

Change-Id: Ibd60f5ed0d4b0ce0160499a34f369de6caa0fb17

Author: AdamCetnerowski

documentation/FAQ.md

@@ -6,11 +6,17 @@
 
 NEO should work on any modern Linux distribution (i.e. Ubuntu, Fedora, etc.)
 with default / stock configuration (no kernel patches), assuming the underlying
-kernel's drm subsystem is 4.7 or higher. Newer platforms will require a kernel version 
+kernel's drm subsystem is 4.7 or higher. Newer platforms will require a kernel version
 that provides support for that platform (e.g. Coffee Lake requires kernel 4.14 or higher).
 
 Our default (most frequent) validation config is currently (as of Q1'18) Ubuntu 16.04.3 LTS.
 
+### What toolchain do you recommend for building NEO on CentOS?
+
+We recommend the following packages:
+* devtoolset-4-gcc-c++
+* llvm-toolset-7-clang
+
 ### Does NEO support Microsoft Windows?
 
 Our closed-source driver for Windows is using the same codebase. At this time,