espulp: fix indentation

Author: Sola85

ports/espressif/common-hal/espulp/ULP.c

@@ -131,7 +131,7 @@ void common_hal_espulp_ulp_run(espulp_ulp_obj_t *self, uint32_t *program, size_t
 }
 
 void common_hal_espulp_ulp_halt(espulp_ulp_obj_t *self) {
-   switch (self->arch) {
+    switch (self->arch) {
         #ifdef CONFIG_ULP_COPROC_TYPE_FSM
         case FSM:
             ulp_timer_stop();
@@ -146,7 +146,7 @@ void common_hal_espulp_ulp_halt(espulp_ulp_obj_t *self) {
         default:
             mp_raise_NotImplementedError(NULL);
             break;
-   }
+    }
 
     // Release pins we were using.
     for (uint8_t i = 0; i < 32; i++) {