ath5k: Fix calinterval and add more RF5413/5414 inivals

*Fix calinterval to be 10secs for now.
*Add some more initial settings i got for RF5413/5414

Still no fix for poor 802.11a performance (probably tx power related) ;-( Leave it as "partialy supported" until this issue is resolved...

for base.c
Changes-licensed-under: 3-clause-BSD

for all others...
Changes-licensed-under: ISC

---

index 0d0e060..01b238a 100644
@@ -95,7 +95,7 @@ enum {
 	ATH_LED_RX,
 };
 
-static int ath5k_calinterval = 1; /* Calibrate PHY every 1 sec (TODO: Fixme) */
+static int ath5k_calinterval = 10; /* Calibrate PHY every 10 secs (TODO: Fixme) */
 
 #if AR_DEBUG
 static unsigned int ath5k_debug;