Staging: w35und: inline hal_set_phy_type() to wb35_hw_init()

Impact: cleanup

The hal_set_phy_type() is called in wb35_hw_init() only so inline the
function there. Also remove a redundant assignment of ->phy_type to
RF_WB_242_1.

Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>