- add tboot-fix-alloc-size-warning.patch: newest GCC spits out this error:
```
pconf_legacy.c: In function ‘create’:
pconf_legacy.c:327:16: error: allocation of insufficient size ‘20’ for type ‘tb_hash_t’ with size ‘64’ [-Werror=alloc-size]
327 | digest = malloc(SHA1_DIGEST_SIZE);
| ^
```
There's a union data type behind this. It's not an actual error. To get rid
of the warning, the patch allocates the full union size, thereby wasting a
bit of memory.