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 <rickard_strandqvist@spectrumdigital.se>
Cc: Rob Herring <robh@kernel.org>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7485/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/ralink/of.c

@@ -81,7 +81,7 @@ static int __init plat_of_setup(void)
 		panic("device tree not present");
 
 	strlcpy(of_ids[0].compatible, soc_info.compatible, len);
-	strncpy(of_ids[1].compatible, "palmbus", len);
+	strlcpy(of_ids[1].compatible, "palmbus", len);
 
 	if (of_platform_populate(NULL, of_ids, NULL, NULL))
 		panic("failed to populate DT");