staging: wfx: drop struct wfx_edca_params

Intermediate structure wfx_edca_params does not help. This patch
relocates its members directly in struct wfx_vif.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-42-Jerome.Pouiller@silabs.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>