[CI] Add fh8620 and x1000 bsp in ci build.

Author: BernardXiong

.travis.yml

@@ -61,3 +61,5 @@ env:
   - RTT_BSP='beaglebone' RTT_TOOL_CHAIN='sourcery-arm'
   - RTT_BSP='zynq7000' RTT_TOOL_CHAIN='sourcery-arm'
   - RTT_BSP='frdm-k64f' RTT_TOOL_CHAIN='sourcery-arm'
+  - RTT_BSP='fh8620' RTT_TOOL_CHAIN='sourcery-arm'
+  - RTT_BSP='x1000' RTT_TOOL_CHAIN='sourcery-mips'