phy: rockchip: remove redundant initialization of pointer cfg

The pointer cfg is being initialized with a value that is never read and
it is being updated later with a new value. The initialization is
redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210609113901.185230-1-colin.king@canonical.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>