Fix icons/bitcoin.ico not found.

Author: thelazier

src/Makefile.qt.include

@@ -161,6 +161,7 @@ BITCOIN_QT_H = \
   qt/winshutdownmonitor.h
 
 RES_ICONS = \
+  qt/res/icons/bitcoin.ico \
   qt/res/icons/drkblue/add.png \
   qt/res/icons/drkblue/address-book.png \
   qt/res/icons/drkblue/bitcoin.ico \