Silence unzip when extracting Android SDK

Author: gnzlbg

ci/android-install-sdk.sh

@@ -22,7 +22,7 @@ SDK=4333796
 API=25
 mkdir sdk
 curl --retry 10 https://dl.google.com/android/repository/sdk-tools-linux-${SDK}.zip -O
-unzip -d sdk sdk-tools-linux-${SDK}.zip
+unzip -q -d sdk sdk-tools-linux-${SDK}.zip
 
 case "$1" in
   arm | armv7)