soc: ti: pruss: Avoid cast to incompatible function type

Rather than casting clk_unregister_mux to an incompatible function
type provide a trivial wrapper with the correct signature for the
use-case.

Reported by clang-16 with W=1:

 drivers/soc/ti/pruss.c:158:38: error: cast from 'void (*)(struct clk *)' to 'void (*)(void *)' converts to incompatible function type [-Werror,-Wcast-function-type-strict]
         ret = devm_add_action_or_reset(dev, (void(*)(void *))clk_unregister_mux,

No functional change intended.
Compile tested only.

Signed-off-by: Simon Horman <horms@kernel.org>
Reviewed-by: MD Danish Anwar <danishanwar@ti.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20230418-pruss-clk-cb-v1-1-549a7e7febe4@kernel.org


Signed-off-by: Nishanth Menon <nm@ti.com>