target-ppc: POWER7+ supports the MSR_VSX bit

Without MSR_VSX we die early during a Linux boot.

Signed-off-by: Anton Blanchard <anton@samba.org>
Reviewed-by: Cédric Le Goater <clg@fr.ibm.com>
Tested-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>

target-ppc/translate_init.c

diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 4fda0fd..87c00a1 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -7118,7 +7118,7 @@
                         PPC2_PERM_ISA206 | PPC2_DIVE_ISA206 |
                         PPC2_ATOMIC_ISA206 | PPC2_FP_CVT_ISA206 |
                         PPC2_FP_TST_ISA206;
-    pcc->msr_mask = 0x800000000204FF37ULL;
+    pcc->msr_mask = 0x800000000284FF37ULL;
     pcc->mmu_model = POWERPC_MMU_2_06;
 #if defined(CONFIG_SOFTMMU)
     pcc->handle_mmu_fault = ppc_hash64_handle_mmu_fault;