[S] Change in coreboot[master]: vboot/vboot_common: Fix vboot_save_data() code exclusion guard

[Julius Werner (Code Review)]

Attention is currently required from: Jakub Czapiga.

Julius Werner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/69761 )

Change subject: vboot/vboot_common: Fix vboot_save_data() code exclusion guard
......................................................................

Patch Set 5: Code-Review+2

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/69761/comment/504253e0_f4140f90 
PS4, Line 12: reduction of undefined references.
> I'm marking this comment as resolved due to no response for a week.

Sorry sorry, have been swamped for a couple of weeks. Have looked at it now, can confirm the compiler is stupid here:
```
   0:   53                      push   %ebx
   1:   83 ec 08                sub    $0x8,%esp
   4:   8b 5c 24 10             mov    0x10(%esp),%ebx       # load ctx
   8:   8b 03                   mov    (%ebx),%eax           # load flags
   a:   a9 02 04 00 00          test   $0x402,%eax           # test flags
   f:   74 0d                   je     1e <vboot_save_data+0x1e> (File Offset: 0xab)
  11:   83 ec 0c                sub    $0xc,%esp             # die path
  14:   68 00 00 00 00          push   $0x0
                        15: R_386_32    .rodata.vboot_save_data.str1.1
  19:   e8 fc ff ff ff          call   1a <vboot_save_data+0x1a> (File Offset: 0xa7)
                        1a: R_386_PC32  die
  1e:   a8 02                   test   $0x2,%al              # test KERNEL_SECDATA flag again even if we jumped over the die path
  20:   74 25                   je     47 <vboot_save_data+0x47> (File Offset: 0xd4)
                        (CONFIG(VBOOT_MOCK_SECDATA) || tlcl_lib_init() == VB2_SUCCESS)) {
  22:   e8 fc ff ff ff          call   23 <vboot_save_data+0x23> (File Offset: 0xb0)
                        23: R_386_PC32  tlcl_lib_init
```
Let's go with your solution.