bricks/stm32: add parentheses around random init

Without it, MicroPython v1.14 fails to build.

Author: laurensvalk

bricks/ev3dev/mpconfigport.h

@@ -219,7 +219,7 @@ static const char pybricks_ev3dev_help_text[] =
 #define MICROPY_PY_UFCNTL_POSIX     (1)
 #define MICROPY_PY_URANDOM          (1)
 #define MICROPY_PY_URANDOM_EXTRA_FUNCS      (1)
-#define MICROPY_PY_URANDOM_SEED_INIT_FUNC   { extern mp_uint_t mp_hal_ticks_us(void); mp_hal_ticks_us(); }
+#define MICROPY_PY_URANDOM_SEED_INIT_FUNC   ({ extern mp_uint_t mp_hal_ticks_us(void); mp_hal_ticks_us(); })
 #ifndef MICROPY_PY_USELECT_POSIX
 #define MICROPY_PY_USELECT_POSIX    (1)
 #endif

bricks/stm32/configport.h

@@ -64,7 +64,7 @@
 #define MICROPY_PY_SYS_MODULES      (0)
 #define MICROPY_PY_URANDOM                  (PYBRICKS_STM32_OPT_EXTRA_MOD)
 #define MICROPY_PY_URANDOM_EXTRA_FUNCS      (PYBRICKS_STM32_OPT_EXTRA_MOD)
-#define MICROPY_PY_URANDOM_SEED_INIT_FUNC   { extern unsigned long clock_usecs(void); clock_usecs(); }
+#define MICROPY_PY_URANDOM_SEED_INIT_FUNC   ({ extern unsigned long clock_usecs(void); clock_usecs(); })
 #define MICROPY_PY_UTIME_MP_HAL             (0)
 #define MICROPY_MODULE_BUILTIN_INIT         (1)
 #define MICROPY_MODULE_WEAK_LINKS   (0)