acpi: Rename motherboard_fill_fadt() to mainboard_fill_fadt()

The prefix mainboard_ was used everywhere else.

Change-Id: Ie576fd47301aa484cb1396e0c6f7260b7698af4d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42007
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/acpi/acpi.c b/src/acpi/acpi.c
index 2f4a2bb..fefa7bf 100644
--- a/src/acpi/acpi.c
+++ b/src/acpi/acpi.c
@@ -1222,7 +1222,7 @@
 #if CONFIG(COMMON_FADT)
 
 __weak void soc_fill_fadt(acpi_fadt_t *fadt) { }
-__weak void motherboard_fill_fadt(acpi_fadt_t *fadt) { }
+__weak void mainboard_fill_fadt(acpi_fadt_t *fadt) { }
 
 void acpi_create_fadt(acpi_fadt_t *fadt, acpi_facs_t *facs, void *dsdt)
 {
@@ -1261,7 +1261,7 @@
 	acpi_fill_fadt(fadt);
 
 	soc_fill_fadt(fadt);
-	motherboard_fill_fadt(fadt);
+	mainboard_fill_fadt(fadt);
 
 	header->checksum =
 	    acpi_checksum((void *) fadt, header->length);