[PowerPC] Rename some more VK_PPC_ enums

This renames more VK_PPC_ enums, to make them more closely reflect
the @modifier string they represent.  This also prepares for adding
a bunch of new VK_PPC_ enums in upcoming patches.

For consistency, some MO_ flags related to VK_PPC_ enums are
likewise renamed.

No change in behaviour.

llvm-svn: 184547
diff --git a/llvm/lib/MC/MCELFStreamer.cpp b/llvm/lib/MC/MCELFStreamer.cpp
index 116f86f..f9a3080 100644
--- a/llvm/lib/MC/MCELFStreamer.cpp
+++ b/llvm/lib/MC/MCELFStreamer.cpp
@@ -363,18 +363,18 @@
     case MCSymbolRefExpr::VK_Mips_GOTTPREL:
     case MCSymbolRefExpr::VK_Mips_TPREL_HI:
     case MCSymbolRefExpr::VK_Mips_TPREL_LO:
-    case MCSymbolRefExpr::VK_PPC_TPREL16_HA:
-    case MCSymbolRefExpr::VK_PPC_TPREL16_LO:
-    case MCSymbolRefExpr::VK_PPC_DTPREL16_HA:
-    case MCSymbolRefExpr::VK_PPC_DTPREL16_LO:
-    case MCSymbolRefExpr::VK_PPC_GOT_TPREL16_HA:
-    case MCSymbolRefExpr::VK_PPC_GOT_TPREL16_LO:
+    case MCSymbolRefExpr::VK_PPC_TPREL_LO:
+    case MCSymbolRefExpr::VK_PPC_TPREL_HA:
+    case MCSymbolRefExpr::VK_PPC_DTPREL_LO:
+    case MCSymbolRefExpr::VK_PPC_DTPREL_HA:
+    case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO:
+    case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HA:
     case MCSymbolRefExpr::VK_PPC_TLS:
-    case MCSymbolRefExpr::VK_PPC_GOT_TLSGD16_HA:
-    case MCSymbolRefExpr::VK_PPC_GOT_TLSGD16_LO:
+    case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_LO:
+    case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HA:
     case MCSymbolRefExpr::VK_PPC_TLSGD:
-    case MCSymbolRefExpr::VK_PPC_GOT_TLSLD16_HA:
-    case MCSymbolRefExpr::VK_PPC_GOT_TLSLD16_LO:
+    case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_LO:
+    case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HA:
     case MCSymbolRefExpr::VK_PPC_TLSLD:
       break;
     }