MIPS: BCM47XX: Make sure NVRAM buffer ends with \0
MIPS: BCM47XX: Make sure NVRAM buffer ends with \0

This will simplify reading its contents.

Signed-off-by: Rafał Miłecki <dced371c11179e2cb83b1e305b9d7b15f379452b@gmail.com>
Cc: 562397917b9a8bf316569a848858b12fb417723f@linux-mips.org
Cc: Hauke Mehrtens <435ddd46dc66c007a1fa20144c823d37e0d23436@hauke-m.de>
Cc: Hante Meuleman <31ca5aa57e9f47a38c33f2797b138069dfa82656@broadcom.com>
Cc: Ian Kent <0efec51fd7cf517793321ec68fd852811537b69c@themaw.net>
Patchwork: https://patchwork.linux-mips.org/patch/10031/
Signed-off-by: Ralf Baechle <92f48d309cda194c8eda36aa8f9ae28c488fa208@linux-mips.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs