Python bindings: Re-introduce function to set kernel buffers count
Python bindings: Re-introduce function to set kernel buffers count

For some reason it was introduced in a completely unrelated commit
(baa7869), that was reverted since then.

Signed-off-by: Paul Cercueil <73d292422978d45c9eeef455bb1b24a0db453722@analog.com>

analogdevicesinc/libiio,analogdevicesinc/libiio,analogdevicesinc/libiio,analogdevicesinc/libiio