clk: airoha: fix off-by-one in clock ID boundary checkmain

The boundary checks in airoha_clk_enable(), airoha_clk_get_rate(), and
airoha_clk_set_rate() use "id > data->num_clocks" which allows id equal
to num_clocks to pass. Since data->descs[] has exactly num_clocks entries
(indices 0 to num_clocks-1), id=num_clocks results in an out-of-bounds
array access.

This is currently not triggered because the device tree clock IDs are
within bounds, but the check should be defensive. Fix by changing the
comparison from ">" to ">=".

Fixes: d0b81afb5ec9 ("clk: airoha: Add support for Airoha AN7581 SoC clock")
Signed-off-by: Wayen Yan <[email protected]>

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