jpeg-turbo: fix legal info

Update name of license file

Fixes:
  http://autobuild.buildroot.net/results/e97/e97edb7dc573912fd140ac681952634584e9ab32

Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/jpeg-turbo/jpeg-turbo.mk

@@ -8,7 +8,7 @@ JPEG_TURBO_VERSION = 1.5.1
 JPEG_TURBO_SOURCE = libjpeg-turbo-$(JPEG_TURBO_VERSION).tar.gz
 JPEG_TURBO_SITE = http://downloads.sourceforge.net/project/libjpeg-turbo/$(JPEG_TURBO_VERSION)
 JPEG_TURBO_LICENSE = jpeg-license (BSD-3c-like)
-JPEG_TURBO_LICENSE_FILES = README README-turbo.txt
+JPEG_TURBO_LICENSE_FILES = LICENSE.md
 JPEG_TURBO_INSTALL_STAGING = YES
 JPEG_TURBO_PROVIDES = jpeg