drivers/wifi/generic: fix package_size to align with WLAN driver

Change to use MAX_DSAR_SET_COUNT which WLAN driver always expects 3
no matter what the revision is for EWRD.
It will pass the WLAN driver check then to retrieve the data properly.

BUG=b:204414616
TEST= tested on brya with DRTU tool to verify if SAR table is
read properly or not.

Change-Id: I18e7d5f658bbf42b7eeed3da330508f14b86c0f8
Signed-off-by: Matt Chen <matt.chen@intel.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58951
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kane Chen <kane.chen@intel.corp-partner.google.com>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
diff --git a/src/drivers/wifi/generic/acpi.c b/src/drivers/wifi/generic/acpi.c
index 11fc0e0..3cc1c63 100644
--- a/src/drivers/wifi/generic/acpi.c
+++ b/src/drivers/wifi/generic/acpi.c
@@ -273,7 +273,7 @@
 	 * Emit 'Domain Type' + 'Dynamic SAR Enable' + 'Extended SAR sets count'
 	 * + number of bytes for Set#2 & 3 & 4
 	 */
-	package_size = 1 + 1 + 1 + table_size * sar->dsar_set_count;
+	package_size = 1 + 1 + 1 + table_size * MAX_DSAR_SET_COUNT;
 	acpigen_write_package(package_size);
 	acpigen_write_dword(DOMAIN_TYPE_WIFI);
 	acpigen_write_dword(1);