update submodules

[damianloew]

* plo 7cd7b15...7c62042 (1):
  > flash-imxrt: fix addressing mode for W25Q256 chip

* phoenix-rtos-tests 2f8fcd3...a37c915 (2):
  > trunner: armv7a9: change way that plo is loaded to board
  > trunner: update gdb setup to configure multiple targets

Description

Motivation and Context

Avoid reboots in plo during startup on imxrt106x target
Avoid using jlink in zedboard flashing process

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

How Has This Been Tested?

• Already covered by automatic testing.
• New test added: (add PR link here).
• Tested by hand on: (list targets here).

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing linter checks and tests passed.
• My changes generate no new compilation warnings for any of the targets.

Special treatment

• This PR needs additional PRs to work (list the PRs, preferably in merge-order).
• I will merge this PR by myself when appropriate.

[github-actions]

Unit Test Results

5 949 tests  ±0   5 296 ✔️ ±0   30m 24s ⏱️ -39s
   325 suites ±0      653 💤 ±0 
       1 files   ±0          0 ❌ ±0 

Results for commit 1f72f9c. ± Comparison against base commit 5b25599.