Silence some warnings about no value returned from non-void function

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5430 c046a42c-6fe2-441c-8c8c-71466251a162

target-m68k/translate.c

@@ -449,6 +449,7 @@ static inline int opsize_bytes(int opsize)
     case OS_DOUBLE: return 8;
     default:
         qemu_assert(0, "bad operand size");
+        return 0;
     }
 }
 

target-sh4/translate.c

@@ -228,7 +228,7 @@ void sh4_cpu_list(FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
 	(*cpu_fprintf)(f, "%s\n", sh4_defs[i].name);
 }
 
-static int cpu_sh4_register(CPUSH4State *env, const sh4_def_t *def)
+static void cpu_sh4_register(CPUSH4State *env, const sh4_def_t *def)
 {
     env->pvr = def->pvr;
     env->prr = def->prr;