s4-common: add I420colorconvert library

Change-Id: Id0f7b821902fba08de098acc6731c3c702fbcbb3
diff --git a/common-proprietary-files.txt b/common-proprietary-files.txt
index 8235d39..0b630f6 100644
--- a/common-proprietary-files.txt
+++ b/common-proprietary-files.txt
@@ -70,6 +70,7 @@
 etc/firmware/vidc_1080p.fw
 
 # Media libraries
+lib/libI420colorconvert.so
 lib/libmm-color-convertor.so
 
 # Radio