crypto: aspeed - fix double free caused by devm

crypto: aspeed - fix double free caused by devm

The clock obtained via devm_clk_get_enabled() is automatically managed
by devres and will be disabled and freed on driver detach. Manually
calling clk_disable_unprepare() in error path and remove function
causes double free.

Remove the manual clock cleanup in both aspeed_acry_probe()'s error
path and aspeed_acry_remove().

Fixes: 2f1cf4e50c95 ("crypto: aspeed - Add ACRY RSA driver")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>