Use .bit and .bin consistently

Xilinx uses .bit for bitstreams that include an additional header that
appears to carry some build information (tool version, date built, etc).
For bitstreams without that header, they use .bin.

Signed-off-by: Rick Altherr <kc8apf@kc8apf.net>

minitests/partial_reconfig_flow/Makefile

@@ -4,15 +4,15 @@
 # ready for programming to a board.  For example, 'make
 # roi_noninv.hand_crafted.bit' will generate a bitstream that includes the
 # design from roi_noninv.fasm. 
-%.hand_crafted.bit: init_sequence.bit %.no_headers.bit final_sequence.bit
+%.hand_crafted.bit: init_sequence.bit %.no_headers.bin final_sequence.bin
 	cat $^ > $@
 
-%.no_headers.bit: %.patched.bit
+%.no_headers.bin: %.patched.bin
 	# WARNING: these values need to be tweaked if anything about the
 	# Vivado-generated design changes.
 	xxd -p -s 0x18 $< | xxd -r -p - $@
 
-%.patched.bit: %.frm harness_routed.bit
+%.patched.bin: %.frm harness_routed.bit
 	${XRAY_TOOLS_DIR}/xc7patch \
 		--part_file ${XRAY_PART_YAML} \
 		--bitstream_file harness_routed.bit \
@@ -28,7 +28,7 @@ init_sequence.bit: harness_routed.bit
 	# Vivado-generated design changes.
 	xxd -p -l 0x147 $< | xxd -r -p - $@
 
-final_sequence.bit: harness_routed.bit
+final_sequence.bin: harness_routed.bit
 	# WARNING: these values need to be tweaked if anything about the
 	# Vivado-generated design changes.
 	xxd -p -s 0x216abf $< | \
@@ -75,7 +75,7 @@ roi_inv_routed.dcp roi_inv_w_harness_routed.dcp harness_routed.dcp: harness.dcp
 clean:
 	rm -rf specimen_[0-9][0-9][0-9]/ seg_clblx.segbits vivado*.log vivado_*.str vivado*.jou design *.bits *.dcp *.bit design.txt .Xil
 	rm -rf out_* *~
-	rm -rf *.frm *.segp *.packets
+	rm -rf *.frm *.segp *.packets *.bin
 	rm -rf harness_routed.fasm roi_inv_w_harness_routed.fasm
 	rm -rf hd_visual