apm/am: Refactoring/Unstub services (#1662)

* apm: Refactoring/Unstub service

This PR implement some IPC calls of apm service:
- nn::apm::IManager is fully implemented.
- nn::apm::ISession is fully implemented (close #1633).
- nn::apm::ISystemManager is partially implemented.

nn::appletAE::ICommonStateGetter have some calls which are just a layer of apm IPC calls. What we did in some calls was wrong, it's fixed now!

Everything is checked with RE.

* abstract Apm *Server as Thog requested

* abstract ISession and fix other classes

* Address gdkchan feedback

* Fix class

* Fix Logging

Ryujinx.HLE/HOS/Services/Apm/ISystemManager.cs

@@ -0,0 +1,42 @@
+namespace Ryujinx.HLE.HOS.Services.Apm
+{
+    abstract class ISystemManager : IpcService
+    {
+        public ISystemManager(ServiceCtx context) { }
+
+        protected abstract void RequestPerformanceMode(PerformanceMode performanceMode);
+        internal abstract void SetCpuBoostMode(CpuBoostMode cpuBoostMode);
+        protected abstract PerformanceConfiguration GetCurrentPerformanceConfiguration();
+
+        [Command(0)]
+        // RequestPerformanceMode(nn::apm::PerformanceMode)
+        public ResultCode RequestPerformanceMode(ServiceCtx context)
+        {
+            RequestPerformanceMode((PerformanceMode)context.RequestData.ReadInt32());
+
+            // NOTE: This call seems to overclock the system related to the PerformanceMode, since we emulate it, it's fine to do nothing instead.
+
+            return ResultCode.Success;
+        }
+
+        [Command(6)] // 7.0.0+
+        // SetCpuBoostMode(nn::apm::CpuBootMode)
+        public ResultCode SetCpuBoostMode(ServiceCtx context)
+        {
+            SetCpuBoostMode((CpuBoostMode)context.RequestData.ReadUInt32());
+
+            // NOTE: This call seems to overclock the system related to the CpuBoostMode, since we emulate it, it's fine to do nothing instead.
+
+            return ResultCode.Success;
+        }
+
+        [Command(7)] // 7.0.0+
+        // GetCurrentPerformanceConfiguration() -> nn::apm::PerformanceConfiguration
+        public ResultCode GetCurrentPerformanceConfiguration(ServiceCtx context)
+        {
+            context.ResponseData.Write((uint)GetCurrentPerformanceConfiguration());
+
+            return ResultCode.Success;
+        }
+    }
+}