cmd: mvebu: bubt: fix quoted string split across lines

Update quoted string alignment to address checkpatch.pl warning
originally introduced in
commit f60a66ef5d7d ("cmd: mvebu: bubt: show image boot device").

Signed-off-by: Joel Johnson <mrjoel@lixil.net>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/mvebu/bubt.c b/cmd/mvebu/bubt.c
index dc0ce01..ef53153 100644
--- a/cmd/mvebu/bubt.c
+++ b/cmd/mvebu/bubt.c
@@ -730,8 +730,8 @@
 
 		for (int i = 0; i < ARRAY_SIZE(a38x_boot_modes); i++) {
 			if (a38x_boot_modes[i].id == hdr->blockid) {
-				printf("Error: A38x image meant to be "
-				       "booted from \"%s\", not \"%s\"!\n",
+				printf("Error: A38x image meant to be booted from "
+				       "\"%s\", not \"%s\"!\n",
 				       a38x_boot_modes[i].name, dst->name);
 				return -ENOEXEC;
 			}