MIPS: Alchemy: Remove unneeded cast removing const

MIPS: Alchemy: Remove unneeded cast removing const

Parent names in clock init data is now array of const pointers to const
strings so the cast is not needed.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Barry Song <baohua@kernel.org>
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Cc: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Inki Dae <inki.dae@samsung.com>
Patchwork: https://patchwork.linux-mips.org/patch/9903
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>