Each smbios entry should be followed with two null bytes. In other
structures it's done by adding `u8 eos[2]` extra bytes at the end, it
was omitted in type38 (IPMI) though. This change fixes this - tables
decodes nicely:
```
IPMI Device Information
Interface Type: KCS (Keyboard Control Style)
Specification Version: 2.0
I2C Slave Address: 0x10
NV Storage Device: Not Present
Base Address: 0x0000000000000CA2 (I/O)
Register Spacing: 32-bit Boundaries
```
Signed-off-by: Lukasz Siudut <lsiudut@fb.com>
Change-Id: I8efea9612448f48e23e7b2226aea2a9f3bc21824
Reviewed-on: https://review.coreboot.org/c/31482
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>