grove: deprecated rest of grove libraries throughout documentation

Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

src/grovespeaker/grovespeaker.hpp

@@ -33,6 +33,7 @@
 
 namespace upm {
   /**
+   * @deprecated This library is being replaced by libupm-speaker
    * @brief Grove Speaker library
    * @defgroup grovespeaker libupm-grovespeaker
    * @ingroup seeed gpio sound hak
@@ -54,6 +55,7 @@ typedef struct
    * @man seeed
    * @con gpio
    * @kit hak
+   * @deprecated This class is being replaced by Speaker
    *
    * @brief API for the Grove Speaker
    *