Poplar: Buildroot updates

Stepping up Buildroot to a more recent version.

Signed-off-by: Joakim Bech <joakim.bech@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
diff --git a/poplar.xml b/poplar.xml
index caddd80..761bc71 100644
--- a/poplar.xml
+++ b/poplar.xml
@@ -23,5 +23,5 @@
 
         <!-- Misc gits -->
         <project path="arm-trusted-firmware" name="ARM-software/arm-trusted-firmware.git" revision="34efb683e32254b8c325ac3071c5776d243a7b99" />
-        <project path="buildroot"            name="buildroot/buildroot.git"               revision="refs/tags/2018.08" clone-depth="1" />
+        <project path="buildroot"            name="buildroot/buildroot.git"               revision="95942f5fcd35d783a49adce621ccf33480f1c88c" />
 </manifest>