[SystemZ][z/OS] csv files should be text files

This patch sets the OF_Text flag correctly for the csv file.

Reviewed By: anirudhp

Differential Revision: https://reviews.llvm.org/D99285

GitOrigin-RevId: ea61708c6d07846e13590b14c4dac2b7d543fef9
diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index e70263e..0918ea4 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -4081,7 +4081,8 @@
         Out.flush();
         std::error_code EC;
         llvm::raw_fd_ostream OS(CCPrintStatReportFilename, EC,
-                                llvm::sys::fs::OF_Append);
+                                llvm::sys::fs::OF_Append |
+                                    llvm::sys::fs::OF_Text);
         if (EC)
           return;
         auto L = OS.lock();