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>

arch/x86/lib/bootm.c

@@ -121,7 +121,7 @@ static int boot_prep_linux(bootm_headers_t *images)
 	} else if (images->ep) {
 		cmd_line_dest = (void *)images->ep + COMMAND_LINE_OFFSET;
 	} else {
-		printf("## Kernel loading failed (no setup) ...\n");
+		printf("## Kernel loading failed (missing x86 kernel setup) ...\n");
 		goto error;
 	}
 

arch/x86/lib/zimage.c

@@ -307,12 +307,12 @@ int do_zboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 	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;
 	}