[RESEND PATCHv2 09/28] ARM: AM33xx: fix module_wait_ready without clkctrl register

* Tero Kristo [off-list ref] [160613 12:08]:

If the module has no clkctrl register defined, module_wait_ready should
not try to access this. This can potentially cause an illegal register
access, and result in bad idle reporting also.

Acked-by: Tony Lindgren <tony@atomide.com>

Seems at least this one I could take separately. Probably best
that we merge the arch/arm/mach-omap2 changes first that can be
done until there's some conclusion to the ti_clk_get() comments
I made.

Regards,

Tony