PowerPC: Fix typos in comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@354382 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/P9InstrResources.td b/lib/Target/PowerPC/P9InstrResources.td
index c4c1098..4b49d27 100644
--- a/lib/Target/PowerPC/P9InstrResources.td
+++ b/lib/Target/PowerPC/P9InstrResources.td
@@ -84,7 +84,7 @@
 )>;
 
 // Restricted Dispatch ALU operation for 3 cycles. The operation runs on a
-// slingle slice. However, since it is Restricted it requires all 3 dispatches
+// single slice. However, since it is Restricted it requires all 3 dispatches
 // (DISP) for that superslice.
 def : InstRW<[P9_ALU_3C, IP_EXEC_1C, DISP_1C, DISP_1C, DISP_1C],
       (instrs
@@ -170,7 +170,7 @@
 )>;
 
 // Restricted Dispatch ALU operation for 2 cycles. The operation runs on a
-//  slingle slice. However, since it is Restricted it requires all 3 dispatches
+//  single slice. However, since it is Restricted it requires all 3 dispatches
 //  (DISP) for that superslice.
 def : InstRW<[P9_ALU_2C, IP_EXEC_1C, DISP_1C, DISP_1C, DISP_1C],
       (instrs