[PowerPC] fix trivial typos in comment, NFC

llvm-svn: 334583
diff --git a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
index 4f6ebbeb..4e1a959 100644
--- a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -1283,7 +1283,7 @@
   if (Subtarget->isELFv2ABI()) {
     // In the Large code model, we allow arbitrary displacements between
     // the text section and its associated TOC section.  We place the
-    // full 8-byte offset to the TOC in memory immediatedly preceding
+    // full 8-byte offset to the TOC in memory immediately preceding
     // the function global entry point.
     if (TM.getCodeModel() == CodeModel::Large
         && !MF->getRegInfo().use_empty(PPC::X2)) {