KVM: PPC: bookehv: Fix r8/r13 storing in level exception handler

Guest r8 register is held in the scratch register and stored correctly,
so remove the instruction that clobbers it. Guest r13 was missing from vcpu,
store it there.
Signed-off-by: NMihai Caraman <mihai.caraman@freescale.com>
Signed-off-by: NAlexander Graf <agraf@suse.de>

arch/powerpc/kvm/bookehv_interrupts.S

@@ -252,10 +252,10 @@ _GLOBAL(kvmppc_handler_\intno\()_\srr1)
 	mfspr	r6, \srr1
 	PPC_LL	r4, GPR11(r8)
 	PPC_STL	r7, VCPU_GPR(r7)(r11)
-	PPC_STL	r8, VCPU_GPR(r8)(r11)
 	PPC_STL r3, VCPU_GPR(r10)(r11)
 	mfctr	r7
 	PPC_STL	r12, VCPU_GPR(r12)(r11)
+	PPC_STL r13, VCPU_GPR(r13)(r11)
 	PPC_STL	r4, VCPU_GPR(r11)(r11)
 	PPC_STL	r7, VCPU_CTR(r11)
 	mr	r4, r11