Use MP_ARRAY_SIZE in some appropriate spots

Author: jepler

ports/raspberrypi/common-hal/audiobusio/I2SOut.c

@@ -175,21 +175,21 @@ void common_hal_audiobusio_i2sout_construct(audiobusio_i2sout_obj_t *self,
         sideset_pin = bit_clock;
 
         if (left_justified) {
-            program_len = sizeof(i2s_program_left_justified) / sizeof(i2s_program_left_justified[0]);
+            program_len = MP_ARRAY_SIZE(i2s_program_left_justified);
             program = i2s_program_left_justified;
         } else {
-            program_len = sizeof(i2s_program) / sizeof(i2s_program[0]);
+            program_len = MP_ARRAY_SIZE(i2s_program);
             program = i2s_program;
         }
 
     } else if (bit_clock->number == word_select->number + 1) {
         sideset_pin = word_select;
 
         if (left_justified) {
-            program_len = sizeof(i2s_program_left_justified_swap) / sizeof(i2s_program_left_justified_swap[0]);
+            program_len = MP_ARRAY_SIZE(i2s_program_left_justified_swap);
             program = i2s_program_left_justified_swap;
         } else {
-            program_len = sizeof(i2s_program_swap) / sizeof(i2s_program_swap[0]);
+            program_len = MP_ARRAY_SIZE(i2s_program_swap);
             program = i2s_program_swap;
         }
 

ports/raspberrypi/common-hal/neopixel_write/__init__.c

@@ -62,7 +62,7 @@ void common_hal_neopixel_write(const digitalio_digitalinout_obj_t *digitalinout,
     // change the pins then though.
     uint32_t pins_we_use = 1 << digitalinout->pin->number;
     bool ok = rp2pio_statemachine_construct(&state_machine,
-        neopixel_program, sizeof(neopixel_program) / sizeof(neopixel_program[0]),
+        neopixel_program, MP_ARRAY_SIZE(neopixel_program),
         12800000, // 12.8MHz, to get appropriate sub-bit times in PIO program.
         NULL, 0, // init program
         NULL, 1, // out