[NFC] Use the same type for bit fields in MCSchedClassDesc

Otherwise they are not allocated as a single bit field and take 4
bytes instead of 2.

Reviewed By: RKSimon
Differential Revision: https://reviews.llvm.org/D95954

GitOrigin-RevId: 4bee0dc918d20a52be9d1766c82a642268b5e1ee
diff --git a/include/llvm/MC/MCSchedule.h b/include/llvm/MC/MCSchedule.h
index ee0e5b4..8f9cd56 100644
--- a/include/llvm/MC/MCSchedule.h
+++ b/include/llvm/MC/MCSchedule.h
@@ -115,8 +115,8 @@
   const char* Name;
 #endif
   uint16_t NumMicroOps : 14;
-  bool     BeginGroup : 1;
-  bool     EndGroup : 1;
+  uint16_t BeginGroup : 1;
+  uint16_t EndGroup : 1;
   uint16_t WriteProcResIdx; // First index into WriteProcResTable.
   uint16_t NumWriteProcResEntries;
   uint16_t WriteLatencyIdx; // First index into WriteLatencyTable.