OMAP2430/3xxx: clock: add modem clock autoidle support

OMAP2430 and OMAP3xxx have modem autoidle bits that are actually
attached to clocks with CM_FCLKEN bits; add the code and data to
handle these.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Rajendra Nayak <rnayak@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 5008f14..70f8b07 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -155,6 +155,7 @@
 extern const struct clkops clkops_omap2_iclk_dflt_wait;
 extern const struct clkops clkops_omap2_iclk_dflt;
 extern const struct clkops clkops_omap2_iclk_idle_only;
+extern const struct clkops clkops_omap2_mdmclk_dflt_wait;
 extern const struct clkops clkops_omap2xxx_dpll_ops;
 extern const struct clkops clkops_omap3_noncore_dpll_ops;
 extern const struct clkops clkops_omap3_core_dpll_ops;