regmap: spi-avmm: Use swabXX_array() helpers

Since we have a few helpers to swab elements of a given size in an array
use them instead of open coded variants.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

drivers/base/regmap/regmap-spi-avmm.c

@@ -7,6 +7,7 @@
 #include <linux/module.h>
 #include <linux/regmap.h>
 #include <linux/spi/spi.h>
+#include <linux/swab.h>
 
 /*
  * This driver implements the regmap operations for a generic SPI
@@ -167,14 +168,7 @@ struct spi_avmm_bridge {
 
 static void br_swap_words_32(char *buf, unsigned int len)
 {
-	u32 *p = (u32 *)buf;
-	unsigned int count;
-
-	count = len / 4;
-	while (count--) {
-		*p = swab32p(p);
-		p++;
-	}
+	swab32_array(buf, len / 4);
 }
 
 /*