mvgpio: remove CONFIG_SHEEVA_88SV331xV5 dependency

The Marvell GPIO driver can be used on Marvell platforms other than
Sheeva, so remove the ifdef to enable it for others.

Signed-off-by: Rob Herring <robh@kernel.org>

drivers/gpio/mvgpio.h

@@ -14,9 +14,8 @@
 
 #include <common.h>
 
-#ifdef CONFIG_SHEEVA_88SV331xV5
 /*
- * GPIO Register map for SHEEVA 88SV331xV5
+ * GPIO Register map for Marvell SOCs
  */
 struct gpio_reg {
 	u32 gplr;	/* Pin Level Register - 0x0000 */
@@ -51,8 +50,5 @@ struct gpio_reg {
 	u32 pad12[2];
 	u32 apmask;	/* Bitwise Mask of Edge Detect Register - 0x009C */
 };
-#else
-#error "CPU core subversion not defined"
-#endif
 
 #endif /* __MVGPIO_H__ */