suit: Add missing conditions

The soc_flash_nrf.h is reqiured and defined only if compiling for nRF
devices.

Ref: NCSDK-32779

Signed-off-by: Tomasz Chyrowicz <[email protected]>

Author: tomchy

drivers/flash/flash_ipuc/flash_ipuc.c

@@ -16,7 +16,9 @@
 #ifdef CONFIG_FLASH_SIMULATOR
 #include <zephyr/drivers/flash/flash_simulator.h>
 #endif /* CONFIG_FLASH_SIMULATOR */
+#ifdef CONFIG_SOC_FLASH_NRF_RADIO_SYNC_RPC_HOST
 #include "soc_flash_nrf.h"
+#endif /* CONFIG_SOC_FLASH_NRF_RADIO_SYNC_RPC_HOST */
 
 /* __ALIGNED macro is not defined on NATIVE POSIX. This platform uses __aligned macro. */
 #ifndef __ALIGNED