tests/net/udp/ - MPU fault on sam_e70_xplained

[yerabolu]

Commit ID: 7983606

E#1      @srrsotc05/same70-07r  console output: ***** MPU FAULT *****
E#1      @srrsotc05/same70-07r  console output:   Instruction Access Violation
E#1      @srrsotc05/same70-07r  console output: ***** Hardware exception *****
E#1      @srrsotc05/same70-07r  console output: Current thread ID = 0x20401db0
E#1      @srrsotc05/same70-07r  console output: Faulting instruction address = 0x521911ae
E#1      @srrsotc05/same70-07r  console output: Fatal fault in essential thread! Spinning...

This is the only output target produced before trying to boot zephyr