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/serial_adapter.c b/boot/zephyr/serial_adapter.c
index 92815a6..5031091 100644
--- a/boot/zephyr/serial_adapter.c
+++ b/boot/zephyr/serial_adapter.c
@@ -15,7 +15,7 @@
*/
#include <stdio.h>
-#include <uart.h>
+#include <drivers/uart.h>
#include <assert.h>
#include <string.h>
#include <zephyr.h>