tree b30eb348c28dd4d444afd8d4793b1aba2def1555
parent 04961a4adcefbf0ceeb610c1d1fe564079f90de6
author Anton Moberg <anton.moberg@arm.com> 1621610421 +0200
committer Kristofer Jonsson <kristofer.jonsson@arm.com> 1621615589 +0200

Weak mutex_create returns NULL

The weak linked symbol ethosu_mutex_create() should in the default case
return NULL.

Change-Id: Ia92ba8fb85137dc6d676b4d4ea050c9c14085472