boards: qemu_cortex_r5: Disable CMSIS-DSP tests

The CMSIS-DSP tests are disabled for the 'qemu_cortex_r5' platform
until the Cortex-R architecture port is more mature.

This commit should be reverted once the CMSIS-Core(R) integration
patches are merged (preliminary work available in zephyrproject-rtos#19698).

Signed-off-by: Stephanos Ioannidis <[email protected]>

Author: stephanosio

boards/arm/qemu_cortex_r5/qemu_cortex_r5.yaml

@@ -13,6 +13,7 @@ testing:
   default: true
   ignore_tags:
     - benchmark
+    - cmsis_dsp
     - cmsis_rtos
     - cpp
     - interrupt