ARM: OMAP2+: powerdomain: Get rid off duplicate pwrdm_clkdm_state_switch() API

With patch 'ARM: OMAP2+: powerdomain: Wait for powerdomain transition
in pwrdm_state_switch()', the pwrdm_clkdm_state_switch() API becomes
duplicate of pwrdm_state_switch().

Get rid off duplicate pwrdm_clkdm_state_switch() and update the
users of it with pwrdm_state_switch()

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index f57ed5b..77db067 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -439,7 +439,7 @@
 		clk->ops->disable(clk);
 	}
 	if (clk->clkdm != NULL)
-		pwrdm_clkdm_state_switch(clk->clkdm);
+		pwrdm_state_switch(clk->clkdm->pwrdm.ptr);
 }
 #endif