protobuf-c: bump version to v1.1.1

Signed-off-by: Steven Noonan <steven@uplinklabs.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/protobuf-c/protobuf-c.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256 49340784ca0f8657f38547088731fff3bfe8084adb89bf5e8dbc19ac43339aa6 protobuf-c-v1.1.1.tar.gz

package/protobuf-c/protobuf-c.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PROTOBUF_C_VERSION = v1.0.0-rc1
+PROTOBUF_C_VERSION = v1.1.1
 PROTOBUF_C_SITE = $(call github,protobuf-c,protobuf-c,$(PROTOBUF_C_VERSION))
 PROTOBUF_C_DEPENDENCIES = host-protobuf-c
 HOST_PROTOBUF_C_DEPENDENCIES = host-protobuf host-pkgconf