now that is_a64() is just always false when !TARGET_AARCH64,
we can just use that instead of introducing a new ifdef.

Signed-off-by: Claudio Fontana <cfontana@suse.de>
---
 target/arm/cpu-common.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/target/arm/cpu-common.c b/target/arm/cpu-common.c
index b7a199a8d6..585223350f 100644
--- a/target/arm/cpu-common.c
+++ b/target/arm/cpu-common.c
@@ -305,9 +305,13 @@ uint64_t arm_sctlr(CPUARMState *env, int el)
 {
     /* Only EL0 needs to be adjusted for EL1&0 or EL2&0. */
     if (el == 0) {
-        ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, 0);
-        el = (mmu_idx == ARMMMUIdx_E20_0 || mmu_idx == ARMMMUIdx_SE20_0)
-            ? 2 : 1;
+        if (is_a64(env)) {
+            ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, 0);
+            el = (mmu_idx == ARMMMUIdx_E20_0 || mmu_idx == ARMMMUIdx_SE20_0)
+                ? 2 : 1;
+        } else {
+            el = 1;
+        }
     }
     return env->cp15.sctlr_el[el];
 }
-- 
2.26.2