setup_mac.sh: Use Android SDK r24.4.1 and NDK r11c
setup_mac.sh: Use Android SDK r24.4.1 and NDK r11c

Change-Id: I0120264ae2895039e910960303b099f76b2c0eed

bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration