drivers: Rename MAX definition to avoid macro naming conflict.

MAX can already be defined by the kernel headers and cause
compilation failure due to the redefinition, so use
MAX_ATTEMPTS to a more descriptive and non-conflicting name.

Resolves: asterisk#61

drivers/dahdi/opvxa1200/base.c

@@ -868,12 +868,12 @@ static int __wait_access(struct wctdm *wc, int card)
     long origjiffies;
     int count = 0;
 
-    #define MAX 6000 /* attempts */
+    #define MAX_ATTEMPTS 6000 /* attempts */
 
 
     origjiffies = jiffies;
     /* Wait for indirect access */
-    while (count++ < MAX)
+    while (count++ < MAX_ATTEMPTS)
 	 {
 		data = __wctdm_getreg(wc, card, I_STATUS);
 
@@ -882,7 +882,7 @@ static int __wait_access(struct wctdm *wc, int card)
 
 	 }
 
-    if(count > (MAX-1)) printk(KERN_NOTICE " ##### Loop error (%02x) #####\n", data);
+    if(count > (MAX_ATTEMPTS-1)) printk(KERN_NOTICE " ##### Loop error (%02x) #####\n", data);
 
 	return 0;
 }

drivers/dahdi/wcaxx-base.c

@@ -1066,16 +1066,16 @@ static int wait_access(struct wcaxx *wc, struct wcaxx_module *const mod)
 	unsigned char data = 0;
 	int count = 0;
 
-	#define MAX 10 /* attempts */
+	#define MAX_ATTEMPTS 10 /* attempts */
 
 	/* Wait for indirect access */
-	while (count++ < MAX) {
+	while (count++ < MAX_ATTEMPTS) {
 		data = wcaxx_getreg(wc, mod, I_STATUS);
 		if (!data)
 			return 0;
 	}
 
-	if (count > (MAX-1)) {
+	if (count > (MAX_ATTEMPTS-1)) {
 		dev_notice(&wc->xb.pdev->dev,
 			   " ##### Loop error (%02x) #####\n", data);
 	}

drivers/dahdi/wctdm.c

@@ -628,11 +628,11 @@ static int __wait_access(struct wctdm *wc, int card)
     unsigned char data = 0;
     int count = 0;
 
-    #define MAX 6000 /* attempts */
+    #define MAX_ATTEMPTS 6000 /* attempts */
 
 
     /* Wait for indirect access */
-    while (count++ < MAX)
+    while (count++ < MAX_ATTEMPTS)
 	 {
 		data = __wctdm_getreg(wc, card, I_STATUS);
 
@@ -641,7 +641,7 @@ static int __wait_access(struct wctdm *wc, int card)
 
 	 }
 
-    if(count > (MAX-1)) printk(KERN_NOTICE " ##### Loop error (%02x) #####\n", data);
+    if(count > (MAX_ATTEMPTS-1)) printk(KERN_NOTICE " ##### Loop error (%02x) #####\n", data);
 
 	return 0;
 }

drivers/dahdi/wctdm24xxp/base.c

@@ -1516,16 +1516,16 @@ static int wait_access(struct wctdm *wc, struct wctdm_module *const mod)
 	unsigned char data = 0;
 	int count = 0;
 
-	#define MAX 10 /* attempts */
+	#define MAX_ATTEMPTS 10 /* attempts */
 
 	/* Wait for indirect access */
-	while (count++ < MAX) {
+	while (count++ < MAX_ATTEMPTS) {
 		data = wctdm_getreg(wc, mod, I_STATUS);
 		if (!data)
 			return 0;
 	}
 
-	if (count > (MAX-1)) {
+	if (count > (MAX_ATTEMPTS-1)) {
 		dev_notice(&wc->vb.pdev->dev,
 			   " ##### Loop error (%02x) #####\n", data);
 	}