net: phy: Cleanup drivers/net/phy/micrel.c

net: phy: Cleanup drivers/net/phy/micrel.c

Old saying says that more than three exclamation marks in a row are
sign of mental disease. Cleanup micrel.c.

Signed-off-by: Pavel Machek <[email protected]>
Signed-off-by: Marek Vasut <[email protected]>
Cc: Chin Liang See <[email protected]>
Cc: Dinh Nguyen <[email protected]>
Cc: Albert Aribaud <[email protected]>
Cc: Tom Rini <[email protected]>
Cc: Wolfgang Denk <[email protected]>
Cc: Pavel Machek <[email protected]>
Cc: Joe Hershberger <[email protected]>
Acked-by: Chin Liang See <[email protected]>