fix(kscan): Fix building kscan for tests.

app/CMakeLists.txt

@@ -57,8 +57,6 @@ target_sources_ifdef(CONFIG_ZMK_BLE app PRIVATE src/battery.c)
 target_sources_ifdef(CONFIG_ZMK_SPLIT_BLE_ROLE_PERIPHERAL app PRIVATE src/split_listener.c)
 target_sources_ifdef(CONFIG_ZMK_SPLIT_BLE_ROLE_PERIPHERAL app PRIVATE src/split/bluetooth/service.c)
 target_sources_ifdef(CONFIG_ZMK_SPLIT_BLE_ROLE_CENTRAL app PRIVATE src/split/bluetooth/central.c)
-target_sources_ifdef(CONFIG_ZMK_KSCAN_MOCK_DRIVER app PRIVATE src/kscan_mock.c)
-target_sources_ifdef(CONFIG_ZMK_KSCAN_COMPOSITE_DRIVER app PRIVATE src/kscan_composite.c)
 target_sources_ifdef(CONFIG_USB app PRIVATE src/usb.c)
 target_sources_ifdef(CONFIG_ZMK_BLE app PRIVATE src/hog.c)
 target_sources_ifdef(CONFIG_ZMK_RGB_UNDERGLOW app PRIVATE src/rgb_underglow.c)

app/drivers/kscan/CMakeLists.txt

@@ -1,8 +1,11 @@
 # Copyright (c) 2020 The ZMK Contributors
 # SPDX-License-Identifier: MIT
 
-zephyr_library()
+zephyr_library_named(zmk__drivers__kscan)
+zephyr_library_include_directories(${CMAKE_SOURCE_DIR}/include)
 
 zephyr_library_sources_ifdef(CONFIG_ZMK_KSCAN_GPIO_DRIVER kscan_gpio_matrix.c)
 zephyr_library_sources_ifdef(CONFIG_ZMK_KSCAN_GPIO_DRIVER kscan_gpio_direct.c)
 zephyr_library_sources_ifdef(CONFIG_ZMK_KSCAN_GPIO_DRIVER kscan_gpio_demux.c)
+zephyr_library_sources_ifdef(CONFIG_ZMK_KSCAN_MOCK_DRIVER kscan_mock.c)
+zephyr_library_sources_ifdef(CONFIG_ZMK_KSCAN_COMPOSITE_DRIVER kscan_composite.c)