MIPS: ath25: Convert random_ether_addr to eth_random_addr

random_ether_addr is a #define for eth_random_addr which is
generally preferred in kernel code by ~3:1

Convert the uses of random_ether_addr to enable removing the #define

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19600/
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@linux-mips.org

arch/mips/ath25/board.c

@@ -146,10 +146,10 @@ int __init ath25_find_config(phys_addr_t base, unsigned long size)
 			pr_info("Fixing up empty mac addresses\n");
 			config->reset_config_gpio = 0xffff;
 			config->sys_led_gpio = 0xffff;
-			random_ether_addr(config->wlan0_mac);
+			eth_random_addr(config->wlan0_mac);
 			config->wlan0_mac[0] &= ~0x06;
-			random_ether_addr(config->enet0_mac);
-			random_ether_addr(config->enet1_mac);
+			eth_random_addr(config->enet0_mac);
+			eth_random_addr(config->enet1_mac);
 		}
 	}