KVM: PPC: E500: Remove E500_TLB_DIRTY flag

Since we always mark pages as dirty immediately when mapping them read/write
now, there's no need for the dirty flag in our cache.

Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/arch/powerpc/kvm/e500.h b/arch/powerpc/kvm/e500.h
index aa8b814..d162286 100644
--- a/arch/powerpc/kvm/e500.h
+++ b/arch/powerpc/kvm/e500.h
@@ -27,8 +27,7 @@
 #define E500_TLB_NUM   2
 
 #define E500_TLB_VALID 1
-#define E500_TLB_DIRTY 2
-#define E500_TLB_BITMAP 4
+#define E500_TLB_BITMAP 2
 
 struct tlbe_ref {
 	pfn_t pfn;