sound: Hack Faux sound

Thanks to @myfluxi for the idea
This hack will always return true for calc_checksum()
which is needed to control sound registers via
terminal commands!

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Signed-off-by: Chet Kener <Cl3Kener@gmail.com>

https://github.com/rachanta/kernel_n5_racer/commit/b22af1c57efd98b605d6d0aca3e3fa559810775e