TA平台使用NV1878来选择RF Card，而AT平台重新换了一个NV28967
rf_nv.c中，/*!Read rf card config NV*/rfc_uncompress_size = RFC_NV_RF_CARD_CONFIG_SIZE_MAX;/* Allocate worst-case memory size for rf card config NV data decompression. */rfc_nv_item_data_ptr = (uint8*)modem_mem_alloc(rfc_uncompress_size*sizeof(uint8), MODEM_MEM_CLIENT_RFA