Blackfin: fix typos in gpio comments

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/board/cm-bf537e/gpio_cfi_flash.c b/board/cm-bf537e/gpio_cfi_flash.c
index bb35169..a9e69cf 100644
--- a/board/cm-bf537e/gpio_cfi_flash.c
+++ b/board/cm-bf537e/gpio_cfi_flash.c
@@ -49,9 +49,9 @@
 	return __raw_read##sfx(gpio_cfi_flash_swizzle(addr)); \
 }
 MAKE_FLASH(8, b)  /* flash_write8()  flash_read8() */
-MAKE_FLASH(16, w) /* flash_write16() flash_write16() */
-MAKE_FLASH(32, l) /* flash_write32() flash_write32() */
-MAKE_FLASH(64, q) /* flash_write64() flash_write64() */
+MAKE_FLASH(16, w) /* flash_write16() flash_read16() */
+MAKE_FLASH(32, l) /* flash_write32() flash_read32() */
+MAKE_FLASH(64, q) /* flash_write64() flash_read64() */
 
 void gpio_cfi_flash_init(void)
 {