[sw] Add TEST_OWNER_FORCE_UPDATE flag to overwrite for testing

This flag allows the owner key to be overwritten unconditionally.

This is intended for testing purposes where we want to reprogram the owner key
without having to erase and reflash the entire device.

Change-Id: I7d131cd391d6583b9ae3ceb5c3fe822308429f10
Signed-off-by: Yi-Hsuan Deng <[email protected]>

Author: sasdf

sw/device/silicon_creator/lib/ownership/test_owner.c

@@ -99,6 +99,7 @@ rom_error_t sku_creator_owner_init(boot_data_t *bootdata) {
   owner_keydata_t owner = OWNER_KEYDATA;
   ownership_state_t state = bootdata->ownership_state;
 
+#ifndef TEST_OWNER_FORCE_UPDATE
   if (state == kOwnershipStateUnlockedSelf ||
       state == kOwnershipStateUnlockedAny ||
       state == kOwnershipStateUnlockedEndorsed) {
@@ -116,6 +117,7 @@ rom_error_t sku_creator_owner_init(boot_data_t *bootdata) {
     // We'll not return, thus allowing the owner config below to be programmed
     // into flash.
   }
+#endif
 
   owner_page[0].header.tag = kTlvTagOwner;
   owner_page[0].header.length = 2048;