MPC832XEMDS: fix pci.c build warning

Doubled use of DECLARE_GLOBAL_DATA_PTR caused compile warning:

pci.c:71: warning: register used for two global register variables
Signed-off-by: NWolfgang Denk <wd@denx.de>
Cc: Kim Phillips <kim.phillips@freescale.com>

board/freescale/mpc832xemds/pci.c

@@ -68,9 +68,6 @@ static struct pci_region pci2_regions[] = {
 };
 #endif
 
-DECLARE_GLOBAL_DATA_PTR;
-
-
 void pci_init_board(void)
 #ifdef CONFIG_PCISLAVE
 {