drivers/siemens/nc_fpga/nc_fpga_early.c: Use write32p()

Change-Id: Ic7139f0adc0ce4556268612f5e77eb01738fc068
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70471
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/drivers/siemens/nc_fpga/nc_fpga_early.c b/src/drivers/siemens/nc_fpga/nc_fpga_early.c
index 7d7d54c..44ed97a 100644
--- a/src/drivers/siemens/nc_fpga/nc_fpga_early.c
+++ b/src/drivers/siemens/nc_fpga/nc_fpga_early.c
@@ -45,5 +45,5 @@
 	   value is written to the register. */
 	if ((ENV_BOOTBLOCK || ENV_ROMSTAGE) && nc_fpga_present == false)
 		return;
-	write32((void *)(fpga_bar + NC_FPGA_POST_OFFSET), value);
+	write32p(fpga_bar + NC_FPGA_POST_OFFSET, value);
 }