Fix missing A1 files from distribution.
diff --git a/Makefile.am b/Makefile.am
index 751e84f..cc81a8f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -14,6 +14,7 @@ EXTRA_DIST = example.conf linux-usb-cgminer \
API.class API.java api-example.c windows-build.txt \
bitstreams/README API-README FPGA-README \
bitforce-firmware-flash.c hexdump.c ASIC-README \
+ A1-desk-board-selector.c A1-desk-board-selector-tca9535.c \
01-cgminer.rules
SUBDIRS = lib compat ccan