x86: Correct a few progress message nits

We should use puts() instead of printf() where possible. Also clarify
the setup.bin message.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/lib/zimage.c b/arch/x86/lib/zimage.c
index aa5597c..566b048 100644
--- a/arch/x86/lib/zimage.c
+++ b/arch/x86/lib/zimage.c
@@ -307,12 +307,12 @@
 	base_ptr = load_zimage(bzImage_addr, bzImage_size, &load_address);
 
 	if (!base_ptr) {
-		printf("## Kernel loading failed ...\n");
+		puts("## Kernel loading failed ...\n");
 		return -1;
 	}
 	if (setup_zimage(base_ptr, (char *)base_ptr + COMMAND_LINE_OFFSET,
 			0, initrd_addr, initrd_size)) {
-		printf("Setting up boot parameters failed ...\n");
+		puts("Setting up boot parameters failed ...\n");
 		return -1;
 	}