KVM: ppc: mostly cosmetic updates to the exit timing accounting code

The only significant changes were to kvmppc_exit_timing_write() and
kvmppc_exit_timing_show(), both of which were dramatically simplified.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/powerpc/kvm/44x_emulate.c b/arch/powerpc/kvm/44x_emulate.c
index 69f88d53..82489a7 100644
--- a/arch/powerpc/kvm/44x_emulate.c
+++ b/arch/powerpc/kvm/44x_emulate.c
@@ -132,7 +132,7 @@
 				run->dcr.is_write = 0;
 				vcpu->arch.io_gpr = rt;
 				vcpu->arch.dcr_needed = 1;
-				account_exit(vcpu, DCR_EXITS);
+				kvmppc_account_exit(vcpu, DCR_EXITS);
 				emulated = EMULATE_DO_DCR;
 			}
 
@@ -152,7 +152,7 @@
 				run->dcr.data = vcpu->arch.gpr[rs];
 				run->dcr.is_write = 1;
 				vcpu->arch.dcr_needed = 1;
-				account_exit(vcpu, DCR_EXITS);
+				kvmppc_account_exit(vcpu, DCR_EXITS);
 				emulated = EMULATE_DO_DCR;
 			}