wct4xxp, wcte13xp: Move the octasic DSP code into separate module.

The octasic library is relatively large and is currently separately linked into
both the wcte13xp and wct4xxp libraries. This change moves it out into a
separate loadable module.

The bigest change from the drivers perspectives is that they must provide a
table of callbacks instead of using statically linked Oct6100UserXxxxx functions
to allow the library to communicate with actual parts on the cards.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>

Makefile

@@ -82,7 +82,7 @@ include/dahdi/version.h: FORCE
 	fi
 	@rm -f $@.tmp
 
-prereq: include/dahdi/version.h firmware-loaders oct612x-lib
+prereq: include/dahdi/version.h firmware-loaders
 
 stackcheck: $(CHECKSTACK) modules
 	objdump -d drivers/dahdi/*.ko drivers/dahdi/*/*.ko | $(CHECKSTACK)
@@ -118,13 +118,6 @@ uninstall-firmware:
 firmware-loaders:
 	$(MAKE) -C drivers/dahdi/firmware firmware-loaders
 
-oct612x-lib:
-ifeq (no,$(HAS_KSRC))
-	@echo "You do not appear to have the sources for the $(KVERS) kernel installed."
-	@exit 1
-endif
-	$(MAKE) -C $(KSRC) M='$(PWD)/drivers/dahdi/oct612x'
-
 install-include:
 	for hdr in $(INST_HEADERS); do \
 		install -D -m 644 include/dahdi/$$hdr $(DESTDIR)/usr/include/dahdi/$$hdr; \