zephyr: Update include paths for Zephyr v2.0.

Zephyr restructured its includes in v2.0 and removed compatibility shims
after two releases in commit 1342dadc365ee22199e51779185899ddf7478686.
Updates include paths in MicroPython accordingly to fix build errors in
the zephyr port.

These changes are compatible with Zephyr v2.0 and later.

ports/zephyr/machine_i2c.c

@@ -30,7 +30,7 @@
 #include <string.h>
 
 #include <zephyr.h>
-#include <i2c.h>
+#include <drivers/i2c.h>
 
 #include "py/runtime.h"
 #include "py/gc.h"

ports/zephyr/machine_pin.c

@@ -30,7 +30,7 @@
 #include <string.h>
 
 #include <zephyr.h>
-#include <gpio.h>
+#include <drivers/gpio.h>
 
 #include "py/runtime.h"
 #include "py/gc.h"

ports/zephyr/modmachine.c

@@ -28,7 +28,7 @@
 
 #include <stdint.h>
 #include <stdio.h>
-#include <misc/reboot.h>
+#include <power/reboot.h>
 
 #include "py/obj.h"
 #include "py/runtime.h"

ports/zephyr/modzephyr.c

@@ -29,7 +29,7 @@
 
 #include <stdio.h>
 #include <zephyr.h>
-#include <misc/stack.h>
+#include <debug/stack.h>
 
 #include "py/runtime.h"
 

ports/zephyr/modzsensor.c

@@ -29,7 +29,7 @@
 #include "py/runtime.h"
 
 #include <zephyr.h>
-#include <sensor.h>
+#include <drivers/sensor.h>
 
 #if MICROPY_PY_ZSENSOR
 

ports/zephyr/src/zephyr_getchar.c

@@ -15,9 +15,9 @@
  */
 
 #include <zephyr.h>
-#include <uart.h>
+#include <drivers/uart.h>
 #include <drivers/console/uart_console.h>
-#include <misc/printk.h>
+#include <sys/printk.h>
 #include "zephyr_getchar.h"
 
 extern int mp_interrupt_char;

ports/zephyr/src/zephyr_start.c

@@ -24,7 +24,7 @@
  * THE SOFTWARE.
  */
 #include <zephyr.h>
-#include <console.h>
+#include <console/console.h>
 #include "zephyr_getchar.h"
 
 int real_main(void);

ports/zephyr/uart_core.c

@@ -27,8 +27,8 @@
 #include "py/mpconfig.h"
 #include "src/zephyr_getchar.h"
 // Zephyr headers
-#include <uart.h>
-#include <console.h>
+#include <drivers/uart.h>
+#include <console/console.h>
 
 /*
  * Core UART functions to implement for a port