Tweak the size of gallery license icon.
Tweak the size of gallery license icon.

Per Vibha's request.
The click area remains the same, and also added drawable for highlight on
press.

Change-Id: I433b2fcc9b48379d2ff2a5beb6f9d533ff71fb0c

SAGROUP2/apps-android-wikipedia,carloshwa/apps-android-wikipedia,anirudh24seven/apps-android-wikipedia,Duct-and-rice/KrswtkhrWiki4Android,reproio/apps-android-wikipedia,wikimedia/apps-android-wikipedia,Duct-and-rice/KrswtkhrWiki4Android,anirudh24seven/apps-android-wikipedia,parvez3019/apps-android-wikipedia,dbrant/apps-android-wikipedia,anirudh24seven/apps-android-wikipedia,carloshwa/apps-android-wikipedia,anirudh24seven/apps-android-wikipedia,reproio/apps-android-wikipedia,SAGROUP2/apps-android-wikipedia,Duct-and-rice/KrswtkhrWiki4Android,SAGROUP2/apps-android-wikipedia,parvez3019/apps-android-wikipedia,Duct-and-rice/KrswtkhrWiki4Android,SAGROUP2/apps-android-wikipedia,dbrant/apps-android-wikipedia,Duct-and-rice/KrswtkhrWiki4Android,dbrant/apps-android-wikipedia,anirudh24seven/apps-android-wikipedia,dbrant/apps-android-wikipedia,carloshwa/apps-android-wikipedia,Wikinaut/wikipedia-app,Wikinaut/wikipedia-app,Wikinaut/wikipedia-app,wikimedia/apps-android-wikipedia,carloshwa/apps-android-wikipedia,parvez3019/apps-android-wikipedia,parvez3019/apps-android-wikipedia,reproio/apps-android-wikipedia,SAGROUP2/apps-android-wikipedia,carloshwa/apps-android-wikipedia,Wikinaut/wikipedia-app,reproio/apps-android-wikipedia,wikimedia/apps-android-wikipedia,Wikinaut/wikipedia-app,dbrant/apps-android-wikipedia,reproio/apps-android-wikipedia,wikimedia/apps-android-wikipedia,parvez3019/apps-android-wikipedia