Rename ar81xx to atheros81xx.

The other Atheros drivers are "atheros813x" and "atheroswifi",
so renaming this one (which is the oldest of the set) to match
the other two makes sense.

build/jam/images/NetBootArchive

@@ -8,12 +8,12 @@ SYSTEM_NETWORK_PROTOCOLS = ipv4 tcp udp icmp unix ;
 
 SYSTEM_ADD_ONS_DRIVERS_NET = [ FFilterByBuildFeatures
 	x86 @{
-		3com atheros813x
+		3com atheros813x atheros81xx
 		broadcom440x broadcom570x ipro1000
 		rtl8139 rtl81xx
 		via_rhine ipro100 nforce
 		marvell_yukon sis900 syskonnect
-		attansic_l2 ar81xx
+		attansic_l2
 	}@ # x86
 
 	etherpci pegasus usb_ecm wb840

build/jam/images/definitions/minimum

@@ -189,7 +189,7 @@ SYSTEM_ADD_ONS_DRIVERS_MIDI = ;
 SYSTEM_ADD_ONS_DRIVERS_NET = [ FFilterByBuildFeatures
 	x86,x86_64 @{
 		3com
-		atheros813x ar81xx attansic_l1 attansic_l2
+		atheros813x atheros81xx attansic_l1 attansic_l2
 		broadcom440x broadcom570x
 		dec21xxx
 		emulex_oce

src/add-ons/kernel/drivers/network/ether/Jamfile

@@ -11,7 +11,7 @@ HaikuSubInclude wb840 ;
 
 # FreeBSD 12 drivers
 HaikuSubInclude 3com ;
-HaikuSubInclude ar81xx ;
+HaikuSubInclude atheros81xx ;
 HaikuSubInclude attansic_l1 ;
 HaikuSubInclude attansic_l2 ;
 HaikuSubInclude broadcom440x ;

src/add-ons/kernel/drivers/network/ether/atheros81xx/Jamfile

@@ -1,4 +1,4 @@
-SubDir HAIKU_TOP src add-ons kernel drivers network ether ar81xx ;
+SubDir HAIKU_TOP src add-ons kernel drivers network ether atheros81xx ;
 
 UseHeaders [ FDirName $(HAIKU_TOP) src libs compat freebsd_network compat ]
 	: true ;
@@ -12,7 +12,7 @@ UseHeaders [ FDirName $(SUBDIR) ] : true ;
 SEARCH_SOURCE += [ FDirName $(SUBDIR) dev mii ] ;
 SEARCH_SOURCE += [ FDirName $(SUBDIR) dev ale ] ;
 
-KernelAddon ar81xx :
+KernelAddon atheros81xx :
 	glue.c
 	ukphy.c
 	ukphy_subr.c

src/add-ons/kernel/drivers/network/ether/atheros81xx/glue.c

@@ -8,7 +8,7 @@
 #include <sys/bus.h>
 
 
-HAIKU_FBSD_DRIVER_GLUE(ar81xx, ale, pci)
+HAIKU_FBSD_DRIVER_GLUE(atheros81xx, ale, pci)
 
 extern driver_t *DRIVER_MODULE_NAME(ukphy, miibus);