gsp_lcd: Update function table

Updated based off information from 3dbrew.

src/core/hle/service/gsp_lcd.cpp

@@ -11,11 +11,15 @@ namespace GSP_LCD {
 
 const Interface::FunctionInfo FunctionTable[] = {
     // clang-format off
+    {0x000A0080, nullptr, "SetBrightnessRaw"},
+    {0x000B0080, nullptr, "SetBrightness"},
     {0x000F0000, nullptr, "PowerOnAllBacklights"},
     {0x00100000, nullptr, "PowerOffAllBacklights"},
     {0x00110040, nullptr, "PowerOnBacklight"},
     {0x00120040, nullptr, "PowerOffBacklight"},
     {0x00130040, nullptr, "SetLedForceOff"},
+    {0x00140000, nullptr, "GetVendor"},
+    {0x00150040, nullptr, "GetBrightness"},
     // clang-format on
 };