target-arm/helper.c: Don't allocate TCG resources unless TCG enabled

Don't call arm_translate_init() (which allocates TCG resources)
unless TCG is enabled.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

target-arm/helper.c

@@ -390,7 +390,7 @@ CPUARMState *cpu_arm_init(const char *cpu_model)
         return NULL;
     env = g_malloc0(sizeof(CPUARMState));
     cpu_exec_init(env);
-    if (!inited) {
+    if (tcg_enabled() && !inited) {
         inited = 1;
         arm_translate_init();
     }