travis/powerpc: Build both UART variants

shenki · shenki · commit 112649bee128 · 2020-05-27T17:27:47.000+09:30
The powerpc port can be build with two different uart drivers. Build
both in CI.

The default compiler is now powerpc64le-linux-gnu- so it does not need
to be specified on the command line.

Signed-off-by: Joel Stanley &lt;joel@jms.id.au&gt;
diff --git a/.travis.yml b/.travis.yml
@@ -355,4 +355,5 @@ jobs:
       install:
         - sudo apt-get install gcc-powerpc64le-linux-gnu libc6-dev-ppc64el-cross
       script:
-        - make ${MAKEOPTS} -C ports/powerpc CROSS_COMPILE=powerpc64le-linux-gnu-
+        - make ${MAKEOPTS} -C ports/powerpc UART=potato
+        - make ${MAKEOPTS} -C ports/powerpc UART=lpc_serial
