Merge pull request #2828 from shenki/buildroot-2019.02.2

buildroot: Move to 2019.02.2 stable release
diff --git a/buildroot b/buildroot
index e01dcd0..93b841d 160000
--- a/buildroot
+++ b/buildroot
@@ -1 +1 @@
-Subproject commit e01dcd0974861a2c26eed6a66829a2d0bc5356d7
+Subproject commit 93b841d204015104b688f865c05234d69b524e9f