Staging: easycap: Makefile: replace the use of <module>-objs with <module>-y

obj-$(CONFIG_EASYCAP)	+= easycap.o

easycap-objs	:= easycap_main.o easycap_low.o easycap_sound.o

easycap-objs	+= easycap_ioctl.o easycap_settings.o

easycap-objs	+= easycap_testcard.o

easycap-y	:= easycap_main.o easycap_low.o easycap_sound.o

easycap-y	+= easycap_ioctl.o easycap_settings.o

easycap-y	+= easycap_testcard.o

ccflags-y := -Wall

# Impose all or none of the following: