target/arm: Use enum constant in get_phys_addr_lpae() call

The access_type argument to get_phys_addr_lpae() is an MMUAccessType;
use the enum constant MMU_DATA_LOAD rather than a literal 0 when we
call it in S1_ptw_translate().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200330210400.11724-3-peter.maydell@linaro.org

target/arm/helper.c

@@ -10052,8 +10052,9 @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx,
             pcacheattrs = &cacheattrs;
         }
 
-        ret = get_phys_addr_lpae(env, addr, 0, ARMMMUIdx_Stage2, &s2pa,
-                                 &txattrs, &s2prot, &s2size, fi, pcacheattrs);
+        ret = get_phys_addr_lpae(env, addr, MMU_DATA_LOAD, ARMMMUIdx_Stage2,
+                                 &s2pa, &txattrs, &s2prot, &s2size, fi,
+                                 pcacheattrs);
         if (ret) {
             assert(fi->type != ARMFault_None);
             fi->s2addr = addr;