efi_loader: correct description of efi_get_distro_fdt_name

Use the correct function name.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/lib/efi_loader/efi_fdt.c b/lib/efi_loader/efi_fdt.c
index c5ecade..f882622 100644
--- a/lib/efi_loader/efi_fdt.c
+++ b/lib/efi_loader/efi_fdt.c
@@ -14,7 +14,7 @@
 #include <vsprintf.h>
 
 /**
- * distro_efi_get_fdt_name() - get the filename for reading the .dtb file
+ * efi_get_distro_fdt_name() - get the filename for reading the .dtb file
  *
  * @fname:	buffer for filename
  * @size:	buffer size