Allow AM33xx boards to setup GPMC chipselects.

Expose the enable_gpmc_cs_config() function so AM33xx based boards can register GPMC chip selects.

Changes in V4:
- Fix checkpatch errors (TAB -> space mangling)

Changes in V3:
- Fix line wrapping

Changes in V2:
- Indicate this is for AM33xx (not OMAP2)

Signed-off-by: Mark Jackson <mpfj@newflow.co.uk>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>

arch/arm/include/asm/arch-am33xx/sys_proto.h

@@ -35,5 +35,7 @@ void ddr_pll_config(unsigned int ddrpll_M);
 
 void sdelay(unsigned long);
 void gpmc_init(void);
+void enable_gpmc_cs_config(const u32 *gpmc_config, struct gpmc_cs *cs, u32 base,
+			u32 size);
 void omap_nand_switch_ecc(int);
 #endif