Fix some LGTM alerts

src/core/ncch/cia_builder.h

@@ -2,6 +2,8 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include <memory>
 #include <mutex>
 #include <string>

src/core/ncch/seed_db.h

@@ -4,6 +4,8 @@
 
 // Modified from Citra's implementation to allow multiple instances
 
+#pragma once
+
 #include <array>
 #include <optional>
 #include <vector>

src/core/ncch/title_metadata.cpp

@@ -234,7 +234,7 @@ void TitleMetadata::Print() const {
             continue;
 
         LOG_DEBUG(Service_FS, "Content chunks for content info index {}:", i);
-        for (u16 j = index; j < index + count; j++) {
+        for (u16 j = index; j < static_cast<u16>(index + count); j++) {
             // Don't attempt to print content we don't have
             if (j > tmd_body.content_count)
                 break;