Switch: to freestanding stdint and stdbool headers

src/drivers/ata.h

@@ -1,6 +1,8 @@
 #ifndef ATA_H
 #define ATA_H
 
+#include <stdint.h>
+
 void ata_read_sector(uint32_t lba, uint8_t* buffer);
 void test_read_sector();