Use 2022_r2 image

Signed-off-by: Julia Pineda <Julia.Pineda@analog.com>

Author: jpineda3

JenkinsfileHW

@@ -3,7 +3,7 @@ lock(label: 'adgt_test_harness_boards') {
   @Library('sdgtt-lib@adgt-test-harness') _ // Not necessary when we turn on global libraries :)
   def hdlBranch = "NA"
   def linuxBranch = "NA"
-  def bootPartitionBranch = "2021_r2"
+  def bootPartitionBranch = "2022_r2"
   def firmwareVersion = 'v0.34'
   def bootfile_source = 'artifactory' // options: sftp, artifactory, http, local
   def harness = getGauntlet(hdlBranch, linuxBranch, bootPartitionBranch, firmwareVersion, bootfile_source)