phy: core: fix code style in devm_of_phy_provider_unregister

Documentation/process/coding-style.rst says:
"functions: they have the opening brace at the beginning of the next
line"

devm_of_phy_provider_unregister() function has opening brace at same
line, so fix it up.

Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

drivers/phy/phy-core.c

···
  * of_phy_provider_unregister to unregister the phy provider.
  */
 void devm_of_phy_provider_unregister(struct device *dev,
-	struct phy_provider *phy_provider) {
+	struct phy_provider *phy_provider)
+{
 	int r;
 
 	r = devres_destroy(dev, devm_phy_provider_release, devm_phy_match,