arch: arm: cortex_r: Use spsr_cxsf instead of spsr_hyp

The use of spsr_hyp is "UNPREDICTABLE" for the ARM Cortex-R52.
Some implements choose to implement the behavior, but it
should not be assumed.
Fixes #47330

Signed-off-by: Tobias Röhmel <tobias.roehmel@rwth-aachen.de>
1 file changed