aml_hciattach -s 115200 /dev/ttyS1 aml   // Original UART BT download command
aml_hciattach -u 0 /dev/aml_btusb        // Original USB BT download command

Currently supported loading instructions after merging:
aml_hciattach -d 1  // -d 1 enable aml_hciattach debug log

Currently default use LINUX-PUBLIC macro configuration defined in aml_comm.h.
Yocto STB/TV: default use LINUX_PUBLIC
ROKU system: add compilation instructions
-DROKU_PROJECT
Buildroot/yocto audio: add compilation instructions
-DAUDIO_PROJECT
Buildroot camera: add compilation instructions
-DCAMERA_PROJECT
