1. Set APP_ABI:=all in almost all samples 2. Enhance hello-jni to report more ABIs 3. Fix warnings Change-Id: I2851c42b77ef8225e32143d225edcf973633e782
1. Set APP_ABI:=all in almost all samples 2. Enhance hello-jni to report more ABIs 3. Fix warnings Change-Id: I2851c42b77ef8225e32143d225edcf973633e782