[legal] Add FILE_LICENCE for ath9k driver headers

Signed-off-by: Marin Hannache <git@mareo.fr>
Modified-by: Michael Brown <mcb30@ipxe.org>
Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/drivers/net/ath/ath.h

 #ifndef ATH_H
 #define ATH_H
 
+FILE_LICENCE ( BSD2 );
+
 #include <unistd.h>
 #include <ipxe/net80211.h>
 

src/drivers/net/ath/ath9k/ani.h

 #ifndef ANI_H
 #define ANI_H
 
+FILE_LICENCE ( BSD2 );
+
 #define HAL_PROCESS_ANI           0x00000001
 
 #define DO_ANI(ah) (((ah)->proc_phyerr & HAL_PROCESS_ANI) && ah->curchan)

src/drivers/net/ath/ath9k/ar9003_eeprom.h

 #ifndef AR9003_EEPROM_H
 #define AR9003_EEPROM_H
 
+FILE_LICENCE ( BSD2 );
+
 #define AR9300_EEP_VER               0xD000
 #define AR9300_EEP_VER_MINOR_MASK    0xFFF
 #define AR9300_EEP_MINOR_VER_1       0x1

src/drivers/net/ath/ath9k/ath9k.h

 #ifndef ATH9K_H
 #define ATH9K_H
 
+FILE_LICENCE ( BSD2 );
+
 #include "common.h"
 
 /*

src/drivers/net/ath/ath9k/ath9k_ar9002_hw.c

  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+FILE_LICENCE ( BSD2 );
+
 #include "hw.h"
 #include "ar5008_initvals.h"
 #include "ar9001_initvals.h"

src/drivers/net/ath/ath9k/ath9k_init.c

  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+FILE_LICENCE ( BSD2 );
+
 #include <ipxe/malloc.h>
 #include <ipxe/pci_io.h>
 #include <ipxe/pci.h>

src/drivers/net/ath/ath9k/calib.h

 #ifndef CALIB_H
 #define CALIB_H
 
+FILE_LICENCE ( BSD2 );
+
 #include "hw.h"
 
 #define AR_PHY_CCA_FILTERWINDOW_LENGTH_INIT     3

src/drivers/net/ath/ath9k/common.h

  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+FILE_LICENCE ( BSD2 );
+
 #include "../ath.h"
 
 #include "hw.h"

src/drivers/net/ath/ath9k/eeprom.h

 #ifndef EEPROM_H
 #define EEPROM_H
 
+FILE_LICENCE ( BSD2 );
+
 #define AR_EEPROM_MODAL_SPURS   5
 
 #include "../ath.h"

src/drivers/net/ath/ath9k/hw.h

 #ifndef HW_H
 #define HW_H
 
+FILE_LICENCE ( BSD2 );
+
 #include <errno.h>
 
 #include "mac.h"

src/drivers/net/ath/ath9k/mac.h

 #ifndef MAC_H
 #define MAC_H
 
+FILE_LICENCE ( BSD2 );
+
 #include <unistd.h>
 
 #define RXSTATUS_RATE(ah, ads) (AR_SREV_5416_20_OR_LATER(ah) ?		\

src/drivers/net/ath/reg.h

 #ifndef ATH_REGISTERS_H
 #define ATH_REGISTERS_H
 
+FILE_LICENCE ( BSD2 );
+
 #define AR_MIBC			0x0040
 #define AR_MIBC_COW		0x00000001
 #define AR_MIBC_FMC		0x00000002

src/drivers/net/ath/regd.h

 #ifndef REGD_H
 #define REGD_H
 
+FILE_LICENCE ( BSD2 );
+
 #include "ath.h"
 
 enum ctl_group {