datapath: Update kernel test list, news and FAQ

We are adding support for Linux kernels up to 5.5 so update the
Travis test list, NEWS and FAQ.

Signed-off-by: Greg Rose <gvrose8192@gmail.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>

.travis.yml

@@ -38,7 +38,7 @@ env:
   - TESTSUITE=1 OPTS="--enable-shared"
   - TESTSUITE=1 DPDK=1
   - TESTSUITE=1 LIBS=-ljemalloc
-  - KERNEL_LIST="5.0  4.20 4.19 4.18 4.17 4.16"
+  - KERNEL_LIST="5.5  4.20 4.19 4.18 4.17 4.16"
   - KERNEL_LIST="4.15 4.14 4.9  4.4  3.19 3.16"
   - AFXDP=1 KERNEL=5.3
   - M32=1 OPTS="--disable-ssl"

Documentation/faq/releases.rst

@@ -70,6 +70,7 @@ Q: What Linux kernel versions does each Open vSwitch release work with?
     2.10.x       3.10 to 4.17
     2.11.x       3.10 to 4.18
     2.12.x       3.10 to 5.0
+    2.14.x       3.10 to 5.5
     ============ ==============
 
     Open vSwitch userspace should also work with the Linux kernel module built

NEWS

@@ -8,6 +8,8 @@ Post-v2.13.0
    - DPDK:
      * Deprecated DPDK pdump packet capture support removed.
      * Deprecated DPDK ring ports (dpdkr) are no longer supported.
+   - Linux datapath:
+     * Support for kernel versions up to 5.5.x.
 
 
 v2.13.0 - 14 Feb 2020