Merged in antmerlino/nuttx/uncompress-addr-fix (pull request #786)

net/sixlowpan: Fixes decompression of ipaddr from MAC address. The logic used to populate the IP from the radio address should match sixlowpan_ipfromsaddr/sixlowpan_ipfromeaddr

Approved-by: GregoryN <gnutt@nuttx.org>

net/sixlowpan/sixlowpan_hc06.c

@@ -513,6 +513,12 @@ static void uncompress_addr(FAR const struct netdev_varaddr_s *addr,
 
       for (i = destndx; i < 8; i++)
         {
+          if (usemac)
+            {
+              ipaddr[i] = (uint16_t)srcptr[0] << 8 | (uint16_t)srcptr[1];
+            }
+          else
+            {
 #ifdef CONFIG_ENDIAN_BIG
               /* Preserve big-endian, network order */
 
@@ -522,6 +528,7 @@ static void uncompress_addr(FAR const struct netdev_varaddr_s *addr,
 
               ipaddr[i] = (uint16_t)srcptr[1] << 8 | (uint16_t)srcptr[0];
 #endif
+            }
           srcptr += 2;
         }