musl: security bump to version 1.1.8

Fixes:
CVE-2015-1817 - stack-based buffer overflow in IPv6 literal parsing.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/musl/musl.hash

@@ -1,2 +1,2 @@
 # Locally calculated after checking pgp signature
-sha256	d8e0aae287ecf8aa6500d3ed4131f33d216a7857dc7649a89125ffca6bf91599	musl-1.1.7.tar.gz
+sha256	fa928506415b9c555977daaf874c190eaf7fbbd16028cc5c5f33a00a83227813	musl-1.1.8.tar.gz

package/musl/musl.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-MUSL_VERSION = 1.1.7
+MUSL_VERSION = 1.1.8
 MUSL_SITE = http://www.musl-libc.org/releases
 MUSL_LICENSE = MIT
 MUSL_LICENSE_FILES = COPYRIGHT