MIPS: ralink: Use strlcpy to ensure string is always NUL-terminated.

MIPS: ralink: Use strlcpy to ensure string is always NUL-terminated.

Replacing strncpy with strlcpy to avoid strings that lacks null terminate.

Signed-off-by: Rickard Strandqvist <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Grant Likely <[email protected]>
Cc: James Hogan <[email protected]>
Cc: John Crispin <[email protected]>
Cc: [email protected]
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/7485/
Signed-off-by: Ralf Baechle <[email protected]>