kernel/process: Make data member variables private

Makes the public interface consistent in terms of how accesses are done
on a process object. It also makes it slightly nicer to reason about the
logic of the process class, as we don't want to expose everything to
external code.

src/core/loader/deconstructed_rom_directory.cpp

@@ -132,7 +132,7 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(Kernel::Process& process)
     process.LoadFromMetadata(metadata);
 
     // Load NSO modules
-    const VAddr base_address = process.vm_manager.GetCodeRegionBaseAddress();
+    const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
     VAddr next_load_addr = base_address;
     for (const auto& module : {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3",
                                "subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"}) {

src/core/loader/elf.cpp

@@ -395,7 +395,7 @@ ResultStatus AppLoader_ELF::Load(Kernel::Process& process) {
     if (buffer.size() != file->GetSize())
         return ResultStatus::ErrorIncorrectELFFileSize;
 
-    const VAddr base_address = process.vm_manager.GetCodeRegionBaseAddress();
+    const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
     ElfReader elf_reader(&buffer[0]);
     SharedPtr<CodeSet> codeset = elf_reader.LoadInto(base_address);
     codeset->name = file->GetName();

src/core/loader/nro.cpp

@@ -181,7 +181,7 @@ ResultStatus AppLoader_NRO::Load(Kernel::Process& process) {
     }
 
     // Load NRO
-    const VAddr base_address = process.vm_manager.GetCodeRegionBaseAddress();
+    const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
 
     if (!LoadNro(file, base_address)) {
         return ResultStatus::ErrorLoadingNRO;

src/core/loader/nso.cpp

@@ -159,7 +159,7 @@ ResultStatus AppLoader_NSO::Load(Kernel::Process& process) {
     }
 
     // Load module
-    const VAddr base_address = process.vm_manager.GetCodeRegionBaseAddress();
+    const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
     LoadModule(file, base_address);
     LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", file->GetName(), base_address);