Update documentation for Arm Compute Library (#22232)
### Description
This PR updates the documentation regarding the ACL execution provider
to reflect the changes made in #22032.
It also updates various references to Arm's trademarks in accordance
with the Arm trademark use guidelines.
### Motivation and Context
Ensures documentation is accurate following recent changes.
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Signed-off-by: Michael Tyler <michael.tyler@arm.com>
