clk: thead: Fix clk gate registration to pass flags

Modify the call to devm_clk_hw_register_gate_parent_data() to actually
pass the clk flags from hw.init instead of just 0. This is necessary to
allow individual clk gates to specify their own clk flags.

Fixes: ae81b69f ("clk: thead: Add support for T-Head TH1520 AP_SUBSYS clocks")
Signed-off-by: Drew Fustini <dfustini@tenstorrent.com>
Link: https://lore.kernel.org/r/20250113-th1520-clk_ignore_unused-v1-1-0b08fb813438@tenstorrent.com


Signed-off-by: Stephen Boyd <sboyd@kernel.org>