au1000: rename patches directory to patches-3.18

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

target/linux/au1000/patches-3.18/003-au1000_eth_ioctl.patch

@@ -14,4 +14,3 @@
 +
 	if (!netif_running(dev))
 		return -EINVAL;
- 

target/linux/au1000/patches-3.18/004-watchdog_low_init.patch

@@ -0,0 +1,12 @@
+--- a/arch/mips/alchemy/board-mtx1.c
++++ b/arch/mips/alchemy/board-mtx1.c
+@@ -98,6 +98,9 @@ void __init board_setup(void)
+	alchemy_gpio_direction_output(211, 1);	/* green on */
+	alchemy_gpio_direction_output(212, 0);	/* red off */
+
++	/* Set watchdog pin low */
++	alchemy_gpio_direction_output(215, 0);
++
+	pm_power_off = mtx1_power_off;
+	_machine_halt = mtx1_power_off;
+	_machine_restart = mtx1_reset;

target/linux/au1000/patches/004-watchdog_low_init.patch

@@ -1,12 +0,0 @@
---- a/arch/mips/alchemy/board-mtx1.c
-+++ b/arch/mips/alchemy/board-mtx1.c
-@@ -98,6 +98,9 @@ void __init board_setup(void)
- 	alchemy_gpio_direction_output(211, 1);	/* green on */
- 	alchemy_gpio_direction_output(212, 0);	/* red off */
- 
-+	/* Set watchdog pin low */
-+	alchemy_gpio_direction_output(215, 0);
-+
- 	pm_power_off = mtx1_power_off;
- 	_machine_halt = mtx1_power_off;
- 	_machine_restart = mtx1_reset;