ath9k: add a few de-bloating and optimization patches

package/mac80211/patches/560-ath9k_move_regops_struct.patch

package/mac80211/patches/561-ath9k_optimize_reg_rmw.patch

package/mac80211/patches/562-ath9k_use_reg_rmw.patch

...age/mac80211/patches/563-ath9k_reg_write_array_func.patch

.../mac80211/patches/564-ath9k_remove_total_queues_cap.patch

package/mac80211/patches/565-ath9k_remove_ht_config.patch

package/mac80211/patches/566-ath9k_remove_regcap.patch

...age/mac80211/patches/567-ath9k_remove_keycache_size.patch

package/mac80211/patches/568-ath9k_remove_enhancedpm.patch

.../mac80211/patches/569-ath9k_remove_tx_triglevel_max.patch