Update connectivity/drivers/802.15.4_RF/atmel-rf-driver/source/NanostackRfPhyAT86RF215.cpp

Co-authored-by: Kevin Bracey <kevin.bracey@arm.com>

Author: talorion

connectivity/libraries/ppp/source/ppp_service.cpp

@@ -60,7 +60,9 @@ extern "C" { // "pppos.h" is missing extern C
 /* Timeout to wait for PPP connection to be terminated
  * (LCP Terminate-Request is answered with Terminate-Ack)
  */
-#define PPP_TERMINATION_TIMEOUT 30s;
+using namespace std::chrono_literals;
+constexpr auto PPP_TERMINATION_TIMEOUT = 30s;
+
 
 // If both IPCP and IPCP6 are made, how long to wait for both to complete
 #define PPP_IPCP_IPCP6_DELAY              5000