OMAP3: PM: readability fix for IVA2 DPLL autoidle

No functional change, just a readability fix.

The symbolic name of the shift value used in writing
CM_AUTOIDLE_PLL_IVA2 referred values in the CM_CLKSTCTRL_IVA2
register.  Fix this to use the AUTOIDLE fields.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/pm34xx.c

@@ -481,9 +481,8 @@ static void __init prcm_setup_regs(void)
 	 * Set all plls to autoidle. This is needed until autoidle is
 	 * enabled by clockfw
 	 */
-	cm_write_mod_reg(1 << OMAP3430_CLKTRCTRL_IVA2_SHIFT,
-			 OMAP3430_IVA2_MOD,
-			 CM_AUTOIDLE2);
+	cm_write_mod_reg(1 << OMAP3430_AUTO_IVA2_DPLL_SHIFT,
+			 OMAP3430_IVA2_MOD, CM_AUTOIDLE2);
 	cm_write_mod_reg(1 << OMAP3430_AUTO_MPU_DPLL_SHIFT,
 			 MPU_MOD,
 			 CM_AUTOIDLE2);