* Update spectrum_collector.cpp
lower case correction
* Update spectrum_collector.cpp
Description changed , better explanation.
* Revert "Update spectrum_collector.cpp"
This reverts commit 4a6fc35384.
* Revert "Update spectrum_collector.cpp"
This reverts commit 35cece1cb0.
* Revert "Solving Compile error on gcc10 . Keeping same safety protection about the size of the array ,but with slightly different sintax."
This reverts commit f4db4e2b53.
* Recovered CTCSS-Roger_beep-MIC-GAIN from 1.5.1
* Temporary removing ALC-( for AK4951 platorm)