Kernel: Enumify all magic constants for I8042 devices

This makes the code much easier to read.

Kernel/Devices/HID/I8042Controller.h

@@ -13,16 +13,55 @@
 
 namespace Kernel {
 
-#define I8042_BUFFER 0x60
-#define I8042_STATUS 0x64
-#define I8042_ACK 0xFA
-#define I8042_RESEND 0xFE
-#define I8042_BUFFER_FULL 0x01
+enum I8042Port : u8 {
+    Buffer = 0x60,
+    Command = 0x64,
+    Status = 0x64,
+};
 
-#define I8042_WHICH_BUFFER 0x20
+enum I8042Command : u8 {
+    ReadConfiguration = 0x20,
+    WriteConfiguration = 0x60,
+    DisableSecondPS2Port = 0xA7,
+    EnableSecondPS2Port = 0xA8,
+    TestSecondPS2Port = 0xA9,
+    TestPS2Controller = 0xAA,
+    TestFirstPS2Port = 0xAB,
+    DisableFirstPS2Port = 0xAD,
+    EnableFirstPS2Port = 0xAE,
+    WriteSecondPS2PortInputBuffer = 0xD4,
+    GetDeviceID = 0xF2,
+    SetSampleRate = 0xF3,
+    EnablePacketStreaming = 0xF4,
+    SetDefaults = 0xF6,
+    Reset = 0xFF,
+};
 
-#define I8042_KEYBOARD_BUFFER 0x00
-#define I8042_MOUSE_BUFFER 0x20
+enum I8042ConfigurationFlag : u8 {
+    FirstPS2PortInterrupt = 1 << 0,
+    SecondPS2PortInterrupt = 1 << 1,
+    SystemFlag = 1 << 2,
+    FirstPS2PortClock = 1 << 4,
+    SecondPS2PortClock = 1 << 5,
+    FirstPS2PortTranslation = 1 << 6,
+};
+
+enum I8042StatusFlag : u8 {
+    OutputBuffer = 1 << 0,
+    InputBuffer = 1 << 1,
+    System = 1 << 2,
+    InputType = 1 << 3,
+    SecondPS2PortOutputBuffer = 1 << 5,
+    TimeoutError = 1 << 6,
+    ParityError = 1 << 7,
+};
+
+enum I8042Response : u8 {
+    ControllerTestPassed = 0x55,
+    Success = 0xAA,
+    Acknowledge = 0xFA,
+    Resend = 0xFE,
+};
 
 class I8042Controller;
 class I8042Device {