KVM: PPC: E500: Make clear_tlb_refs and clear_tlb1_bitmap static

Host shadow TLB flushing is logic that the guest TLB code should have
no insight about. Declare the internal clear_tlb_refs and clear_tlb1_bitmap
functions static to the host TLB handling file.

Instead of these, we can use the already exported kvmppc_core_flush_tlb().
This gives us a common API across the board to say "please flush any
pending host shadow translation".

Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c
index 9a150bc..a222edf 100644
--- a/arch/powerpc/kvm/e500_mmu_host.c
+++ b/arch/powerpc/kvm/e500_mmu_host.c
@@ -262,7 +262,7 @@
 	}
 }
 
-void clear_tlb1_bitmap(struct kvmppc_vcpu_e500 *vcpu_e500)
+static void clear_tlb1_bitmap(struct kvmppc_vcpu_e500 *vcpu_e500)
 {
 	if (vcpu_e500->g2h_tlb1_map)
 		memset(vcpu_e500->g2h_tlb1_map, 0,
@@ -284,7 +284,7 @@
 	}
 }
 
-void clear_tlb_refs(struct kvmppc_vcpu_e500 *vcpu_e500)
+static void clear_tlb_refs(struct kvmppc_vcpu_e500 *vcpu_e500)
 {
 	int stlbsel = 1;
 	int i;