{drivers,southbridge}: Replace min() with MIN()

This is to remove min/max() from <stdlib.h>.

Change-Id: Ica03d9aec8a81f57709abcac655dfb0ebce3f8c6
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37818
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/drivers/spi/atmel.c

@@ -13,7 +13,7 @@
  */
 
 #include <console/console.h>
-#include <stdlib.h>
+#include <commonlib/helpers.h>
 #include <spi_flash.h>
 #include <spi-generic.h>
 #include <string.h>
@@ -117,7 +117,7 @@ static int atmel_write(const struct spi_flash *flash, u32 offset, size_t len,
 
 	for (actual = 0; actual < len; actual += chunk_len) {
 		byte_addr = offset % page_size;
-		chunk_len = min(len - actual, page_size - byte_addr);
+		chunk_len = MIN(len - actual, page_size - byte_addr);
 		chunk_len = spi_crop_chunk(&flash->spi, sizeof(cmd), chunk_len);
 
 		cmd[0] = CMD_AT25_PP;