ARM: OMAP3: vc: fix 'or' always true warning

Fix the warning:
arch/arm/mach-omap2/vc.c:302:47: warning: logical ‘or’ of collectively exhaustive tests is always true [-Wlogical-op]

As we're toggling both CLKREQ and OFFMODE, we should also be checking
OFFMODE.

Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c
index e5a35f6..d44d311 100644
--- a/arch/arm/mach-omap2/vc.c
+++ b/arch/arm/mach-omap2/vc.c
@@ -300,7 +300,7 @@
 
 	val = voltdm->read(OMAP3_PRM_POLCTRL_OFFSET);
 	if (!(val & OMAP3430_PRM_POLCTRL_CLKREQ_POL) ||
-	    (val & OMAP3430_PRM_POLCTRL_CLKREQ_POL)) {
+	    (val & OMAP3430_PRM_POLCTRL_OFFMODE_POL)) {
 		val |= OMAP3430_PRM_POLCTRL_CLKREQ_POL;
 		val &= ~OMAP3430_PRM_POLCTRL_OFFMODE_POL;
 		pr_debug("PM: fixing sys_clkreq and sys_off_mode polarity to 0x%x\n",