platform/x86: samsung-laptop: Initialize loca variable

The variable is used uninitialized which might come into unexpected
behaviour on some Samsung laptops.

Initialize it to 0xffff which seems a proper value for non-supported
feature.
Reported-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

drivers/platform/x86/samsung-laptop.c

@@ -1446,9 +1446,9 @@ static int __init samsung_sabi_init(struct samsung_laptop *samsung)
 	const struct sabi_config *config = NULL;
 	const struct sabi_commands *commands;
 	unsigned int ifaceP;
+	int loca = 0xffff;
 	int ret = 0;
 	int i;
-	int loca;
 
 	samsung->f0000_segment = ioremap_nocache(0xf0000, 0xffff);
 	if (!samsung->f0000_segment) {