Commit a63efb1547ac35dcb0f007090396a3c7510eb691 broke the dss1_alwon_fck
clock enable on 3430ES2+. The clock code was not waiting for the module
to come out of idle.
Problem reported by Rajendra Nayak <rnayak@ti.com>.
Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>