applications: nrf_desktop: config_event: address string truncation error

Replaced the implementation of the copy operation in the
GEN_CONFIG_EVENT_HANDLERS macro declaration of the Config Event header
that is part of the nRF Desktop application.

This change is done to address the string truncation error
(-Werror=stringop-truncation) that was caused by the strncpy function.

Signed-off-by: Kamil Piszczek <[email protected]>

Author: kapi-no

applications/nrf_desktop/src/events/config_event.h

@@ -141,7 +141,7 @@ extern const uint8_t __start_config_channel_modules[];
 						rsp_data_size = strlen(data_ptr);		\
 						__ASSERT_NO_MSG(rsp_data_size <=		\
 								sizeof(rsp_data_buf));		\
-						strncpy((char *) rsp_data_buf, data_ptr,	\
+						memcpy(rsp_data_buf, data_ptr,			\
 								rsp_data_size);			\
 						cur_opt_descr++;				\
 					} else {						\