Update submodules

[Darchiv]

• phoenix-rtos-devices a34c653...48a5f47 (7):

  imxrt-multi: implement adaptive polling rate for RTT
  imxrt-multi: Allow UART_CONSOLE_USER to be defined empty
  imxrt-multi: change RTT initialization
  imxrt-multi: add support for console over RTT
  librtt: change API to allow per-channel initialization.
  librtt: fix bugs in initialization
  librtt: implement RTT-PIPE library

Description

Motivation and Context

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)
• Chore (refactoring, style fixes, git/CI config, submodule management, no code logic changes)

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

7 741 tests  ±0   7 026 ✅ ±0   39m 29s ⏱️ -15s
  461 suites ±0     715 💤 ±0 
    1 files   ±0       0 ❌ ±0 

Results for commit 6463663. ± Comparison against base commit 13e23af.