zephyr: fix driver include paths
Zephyr will soon no longer add the drivers subdirectory of the include
hierarchy to the search path, so references to driver headers must
include the drivers/ prefix.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
diff --git a/boot/zephyr/main.c b/boot/zephyr/main.c
index c141c43..b9ecf51 100644
--- a/boot/zephyr/main.c
+++ b/boot/zephyr/main.c
@@ -16,9 +16,9 @@
#include <assert.h>
#include <zephyr.h>
-#include <gpio.h>
+#include <drivers/gpio.h>
#include <sys/__assert.h>
-#include <flash.h>
+#include <drivers/flash.h>
#include <drivers/timer/system_timer.h>
#include <usb/usb_device.h>
#include <soc.h>