treewide: Use 'pm2_cnt_len' for 'x_pm2_cnt_blk.bit_width'

Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: I040ddab8845cc2191c6ca5af7f132ec8a504bccf
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68274
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/southbridge/amd/cimx/sb800/fadt.c b/src/southbridge/amd/cimx/sb800/fadt.c
index cf566fa..bba36ca 100644
--- a/src/southbridge/amd/cimx/sb800/fadt.c
+++ b/src/southbridge/amd/cimx/sb800/fadt.c
@@ -103,7 +103,7 @@
 	fadt->x_pm1a_cnt_blk.addrh = 0x0;
 
 	fadt->x_pm2_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
-	fadt->x_pm2_cnt_blk.bit_width = 8;	/* Hudson 1 Pm2Control is 8 bits */
+	fadt->x_pm2_cnt_blk.bit_width = fadt->pm2_cnt_len * 8;
 	fadt->x_pm2_cnt_blk.bit_offset = 0;
 	fadt->x_pm2_cnt_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
 	fadt->x_pm2_cnt_blk.addrl = ACPI_PMA_CNT_BLK_ADDRESS;