[llvm] Format OSType enum (NFC)

The trailing comments cause clang-format to complain every time the enum
is modified. Fix the formatting to avoid tripping up the formatting
check on GitHub.

Author: JDevlieghere

llvm/include/llvm/TargetParser/Triple.h

@@ -194,7 +194,7 @@ class Triple {
     IOS,
     KFreeBSD,
     Linux,
-    Lv2,        // PS3
+    Lv2, // PS3
     MacOSX,
     NetBSD,
     OpenBSD,
@@ -204,18 +204,18 @@ class Triple {
     ZOS,
     Haiku,
     RTEMS,
-    NaCl,       // Native Client
+    NaCl, // Native Client
     AIX,
-    CUDA,       // NVIDIA CUDA
-    NVCL,       // NVIDIA OpenCL
-    AMDHSA,     // AMD HSA Runtime
+    CUDA,   // NVIDIA CUDA
+    NVCL,   // NVIDIA OpenCL
+    AMDHSA, // AMD HSA Runtime
     PS4,
     PS5,
     ELFIAMCU,
-    TvOS,       // Apple tvOS
-    WatchOS,    // Apple watchOS
-    DriverKit,  // Apple DriverKit
-    XROS,       // Apple XROS
+    TvOS,      // Apple tvOS
+    WatchOS,   // Apple watchOS
+    DriverKit, // Apple DriverKit
+    XROS,      // Apple XROS
     Mesa3D,
     AMDPAL,     // AMD PAL Runtime
     HermitCore, // HermitCore Unikernel/Multikernel
@@ -225,7 +225,7 @@ class Triple {
     ShaderModel, // DirectX ShaderModel
     LiteOS,
     Serenity,
-    Vulkan,      // Vulkan SPIR-V
+    Vulkan, // Vulkan SPIR-V
     LastOSType = Vulkan
   };
   enum EnvironmentType {