nrf_wifi: Move shim files from driver to module

The shim files should be part of the Zephyr module directory within
Zephyr, as they are coupled with the module implementation which os OS
agnostic.

Signed-off-by: Chaitanya Tata <Chaitanya.Tata@nordicsemi.no>

drivers/wifi/nrf_wifi/CMakeLists.txt

@@ -25,9 +25,6 @@ zephyr_library_sources_ifdef(CONFIG_NRF70_SR_COEX
 )
 
 zephyr_library_sources(
-  src/shim.c
-  src/work.c
-  src/timer.c
   src/qspi/src/device.c
   src/qspi/src/rpu_hw_if.c
   src/qspi/src/ficr_prog.c

modules/nrf_wifi/CMakeLists.txt

@@ -167,4 +167,10 @@ zephyr_library_sources_ifdef(CONFIG_NRF70_STA_MODE
   ${NRF_WIFI_DIR}/fw_if/umac_if/src/fmac_util.c
 )
 
+zephyr_library_sources(
+  shim.c
+  timer.c
+  work.c
+)
+
 target_link_libraries(zephyr_interface INTERFACE nrf-wifi-interface)