sf: move useful messages from debug to printf

At the moment, the default SPI flash subsystem is quite terse.  Errors and
successes both result in a generic message.  So move the useful errors and
useful successes to printf output by default.

While we're here, also convert the messages to use print_size().

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/drivers/mtd/spi/atmel.c b/drivers/mtd/spi/atmel.c
index 8306c00..8d02169 100644
--- a/drivers/mtd/spi/atmel.c
+++ b/drivers/mtd/spi/atmel.c
@@ -467,7 +467,7 @@
 struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode)
 {
 	const struct atmel_spi_flash_params *params;
-	unsigned long page_size;
+	unsigned page_size;
 	unsigned int family;
 	struct atmel_spi_flash *asf;
 	unsigned int i;
@@ -540,8 +540,9 @@
 				* params->blocks_per_sector
 				* params->nr_sectors;
 
-	debug("SF: Detected %s with page size %lu, total %u bytes\n",
-			params->name, page_size, asf->flash.size);
+	printf("SF: Detected %s with page size %u, total ",
+	       params->name, page_size);
+	print_size(asf->flash.size, "\n");
 
 	return &asf->flash;