soundwire: intel: use a single module

It's not clear why we have two modules for the Intel controller/master
support when there is a single Kconfig. This adds complexity for no
good reason, the two parts need to work together anyways.

Signed-off-by: Rander Wang <[e-mail]>
Signed-off-by: Pierre-Louis Bossart <[e-mail]>
Signed-off-by: Bard Liao <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

drivers/soundwire/Makefile

···
 obj-$(CONFIG_SOUNDWIRE_CADENCE) += soundwire-cadence.o
 
 #Intel driver
-soundwire-intel-objs :=	intel.o
+soundwire-intel-objs :=	intel.o intel_init.o
 obj-$(CONFIG_SOUNDWIRE_INTEL) += soundwire-intel.o
-
-soundwire-intel-init-objs := intel_init.o
-obj-$(CONFIG_SOUNDWIRE_INTEL) += soundwire-intel-init.o
 
 #Qualcomm driver
 soundwire-qcom-objs :=	qcom.o