loader: Add ReadRomFSIVFCOffset to NSP, XCI, and NAX loaders

Fixes errors with certain updates

src/core/loader/nax.cpp

@@ -72,6 +72,10 @@ ResultStatus AppLoader_NAX::ReadRomFS(FileSys::VirtualFile& dir) {
     return nca_loader->ReadRomFS(dir);
 }
 
+u64 AppLoader_NAX::ReadRomFSIVFCOffset() const {
+    return nca_loader->ReadRomFSIVFCOffset();
+}
+
 ResultStatus AppLoader_NAX::ReadProgramId(u64& out_program_id) {
     return nca_loader->ReadProgramId(out_program_id);
 }

src/core/loader/nax.h

@@ -36,6 +36,7 @@ public:
     ResultStatus Load(Kernel::Process& process) override;
 
     ResultStatus ReadRomFS(FileSys::VirtualFile& dir) override;
+    u64 ReadRomFSIVFCOffset() const override;
     ResultStatus ReadProgramId(u64& out_program_id) override;
 
 private:

src/core/loader/nsp.cpp

@@ -96,8 +96,12 @@ ResultStatus AppLoader_NSP::Load(Kernel::Process& process) {
     return ResultStatus::Success;
 }
 
-ResultStatus AppLoader_NSP::ReadRomFS(FileSys::VirtualFile& dir) {
-    return secondary_loader->ReadRomFS(dir);
+ResultStatus AppLoader_NSP::ReadRomFS(FileSys::VirtualFile& file) {
+    return secondary_loader->ReadRomFS(file);
+}
+
+u64 AppLoader_NSP::ReadRomFSIVFCOffset() const {
+    return secondary_loader->ReadRomFSIVFCOffset();
 }
 
 ResultStatus AppLoader_NSP::ReadProgramId(u64& out_program_id) {

src/core/loader/nsp.h

@@ -37,7 +37,8 @@ public:
 
     ResultStatus Load(Kernel::Process& process) override;
 
-    ResultStatus ReadRomFS(FileSys::VirtualFile& dir) override;
+    ResultStatus ReadRomFS(FileSys::VirtualFile& file) override;
+    u64 ReadRomFSIVFCOffset() const override;
     ResultStatus ReadProgramId(u64& out_program_id) override;
     ResultStatus ReadIcon(std::vector<u8>& buffer) override;
     ResultStatus ReadTitle(std::string& title) override;

src/core/loader/xci.cpp

@@ -68,10 +68,13 @@ ResultStatus AppLoader_XCI::Load(Kernel::Process& process) {
     return ResultStatus::Success;
 }
 
-ResultStatus AppLoader_XCI::ReadRomFS(FileSys::VirtualFile& dir) {
-    return nca_loader->ReadRomFS(dir);
+ResultStatus AppLoader_XCI::ReadRomFS(FileSys::VirtualFile& file) {
+    return nca_loader->ReadRomFS(file);
 }
 
+u64 AppLoader_XCI::ReadRomFSIVFCOffset() const {
+    return nca_loader->ReadRomFSIVFCOffset();
+}
 ResultStatus AppLoader_XCI::ReadProgramId(u64& out_program_id) {
     return nca_loader->ReadProgramId(out_program_id);
 }

src/core/loader/xci.h

@@ -37,7 +37,8 @@ public:
 
     ResultStatus Load(Kernel::Process& process) override;
 
-    ResultStatus ReadRomFS(FileSys::VirtualFile& dir) override;
+    ResultStatus ReadRomFS(FileSys::VirtualFile& file) override;
+    u64 ReadRomFSIVFCOffset() const override;
     ResultStatus ReadProgramId(u64& out_program_id) override;
     ResultStatus ReadIcon(std::vector<u8>& buffer) override;
     ResultStatus ReadTitle(std::string& title) override;