OMAP2: PRCM: fix some SHIFT macros that were actually bitmasks

After Charu's GPIO hwmod patches, GPIO initialization on N800 emits
the following messages for all GPIO banks:

omap_hwmod: gpio1: cannot be enabled (3)

This is due to OMAP24XX_ST_GPIOS_SHIFT being defined as a bitmask.
Fix this and also fix two other macros that had the same problem.

Thanks to Tony Lindgren <tony@atomide.com> for originally reporting
this bug.

Signed-off-by: Paul Walmsley <paul@pwsan.com
Cc: Charulatha Varadarajan <charu@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/prcm-common.h

@@ -243,13 +243,14 @@
 #define OMAP24XX_EN_GPT1_MASK				(1 << 0)
 
 /* PM_WKST_WKUP, CM_IDLEST_WKUP shared bits */
-#define OMAP24XX_ST_GPIOS_SHIFT				(1 << 2)
-#define OMAP24XX_ST_GPIOS_MASK				2
-#define OMAP24XX_ST_GPT1_SHIFT				(1 << 0)
-#define OMAP24XX_ST_GPT1_MASK				0
+#define OMAP24XX_ST_GPIOS_SHIFT				2
+#define OMAP24XX_ST_GPIOS_MASK				(1 << 2)
+#define OMAP24XX_ST_GPT1_SHIFT				0
+#define OMAP24XX_ST_GPT1_MASK				(1 << 0)
 
 /* CM_IDLEST_MDM and PM_WKST_MDM shared bits */
-#define OMAP2430_ST_MDM_SHIFT				(1 << 0)
+#define OMAP2430_ST_MDM_SHIFT				0
+#define OMAP2430_ST_MDM_MASK				(1 << 0)
 
 
 /* 3430 register bits shared between CM & PRM registers */