doc: input: fix typos in input.rst
'even codes' should be 'event codes' at the end of input.rst
Signed-off-by: Wu Canhong <canhong12@163.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251226160219.64818-1-canhong12@163.com>
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