mm: kasan: Initialize first_bad_addr field in info variable in report.c

This change is required to fix compile error when
CONFIG_CC_OPTIMIZE_FOR_SIZE is turned off.

Change-Id: I9c2a5aa3d459bb1d928e60d7ea9136ab0210aff6
Signed-off-by: Sridhar Parasuram <sridhar@codeaurora.org>

mm/kasan/report.c

@@ -366,6 +366,7 @@ void kasan_report(unsigned long addr, size_t size,
 	info.access_size = size;
 	info.is_write = is_write;
 	info.ip = ip;
+	info.first_bad_addr = NULL;
 
 	kasan_report_error(&info);
 }