rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/drivers/mtd/spi/spi_flash_internal.h b/drivers/mtd/spi/spi_flash_internal.h
index e5f758e..75f5900 100644
--- a/drivers/mtd/spi/spi_flash_internal.h
+++ b/drivers/mtd/spi/spi_flash_internal.h
@@ -5,9 +5,9 @@
  */
 
 /* Common parameters */
-#define SPI_FLASH_PROG_TIMEOUT		((10 * CFG_HZ) / 1000)
-#define SPI_FLASH_PAGE_ERASE_TIMEOUT	((50 * CFG_HZ) / 1000)
-#define SPI_FLASH_SECTOR_ERASE_TIMEOUT	(10 * CFG_HZ)
+#define SPI_FLASH_PROG_TIMEOUT		((10 * CONFIG_SYS_HZ) / 1000)
+#define SPI_FLASH_PAGE_ERASE_TIMEOUT	((50 * CONFIG_SYS_HZ) / 1000)
+#define SPI_FLASH_SECTOR_ERASE_TIMEOUT	(10 * CONFIG_SYS_HZ)
 
 /* Common commands */
 #define CMD_READ_ID			0x9f
diff --git a/drivers/mtd/spi/stmicro.c b/drivers/mtd/spi/stmicro.c
index c999b12..b8b835a 100644
--- a/drivers/mtd/spi/stmicro.c
+++ b/drivers/mtd/spi/stmicro.c
@@ -295,7 +295,7 @@
 		}
 
 		/* Up to 2 seconds */
-		ret = stmicro_wait_ready(flash, 2 * CFG_HZ);
+		ret = stmicro_wait_ready(flash, 2 * CONFIG_SYS_HZ);
 		if (ret < 0) {
 			debug("SF: STMicro page erase timed out\n");
 			break;