package/libjpeg: security bump to version 9d

- Fix CVE-2018-11813: libjpeg 9c has a large loop because read_pixel in
  rdtarga.c mishandles EOF.
- Update hash of README (small updates such as authors, year ...)

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libjpeg/libjpeg.hash

@@ -1,3 +1,3 @@
 # locally computed hash
-sha256	650250979303a649e21f87b5ccd02672af1ea6954b911342ea491f351ceb7122	jpegsrc.v9c.tar.gz
-sha256	31f366acfb6259456d9046eb7f16875e387f8bf029d37ac4c4397bf63f22fd6b	README
+sha256	99cb50e48a4556bc571dadd27931955ff458aae32f68c4d9c39d624693f69c32	jpegsrc.v9d.tar.gz
+sha256	3dc4e4a145c907a96bd6a0e40be3f722fecf061951909143cdff5365cba9c78c	README

package/libjpeg/libjpeg.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBJPEG_VERSION = 9c
+LIBJPEG_VERSION = 9d
 LIBJPEG_SITE = http://www.ijg.org/files
 LIBJPEG_SOURCE = jpegsrc.v$(LIBJPEG_VERSION).tar.gz
 LIBJPEG_LICENSE = IJG