Revert "Makefile: don't install the file as is for DKMS"

This reverts commit ebbe59b205.

It caused difficulties with packaging the module which require relevant
knowledge to resolve.  So far it seems simpler to revert this
modification.

Makefile

@@ -1,4 +1,4 @@
-makefile    := obj-m += nct6687.o
+obj-m += nct6687.o
 
 curpwd      := $(shell pwd)
 kver        ?= $(shell uname -r)
@@ -10,8 +10,7 @@ fedoraver   := $(shell sed -n 's/.*Fedora release \([^ ]*\).*/\1/p' /etc/fedora-
 build:
 	rm -rf ${curpwd}/${kver}
 	mkdir -p ${curpwd}/${kver}
-	cp ${curpwd}/nct6687.c ${curpwd}/${kver}
-	echo '${makefile}' > ${curpwd}/${kver}/Makefile
+	cp ${curpwd}/Makefile ${curpwd}/nct6687.c ${curpwd}/${kver}
 	cd ${curpwd}/${kver}
 	make -C /lib/modules/${kver}/build M=${curpwd}/${kver} modules
 install: build
@@ -31,8 +30,7 @@ akmod/build:
 	fi
 	sudo dnf install -y rpmdevtools kmodtool
 	mkdir -p ${curpwd}/.tmp/nct6687d-1.0.${commitcount}/nct6687d
-	cp LICENSE nct6687.c ${curpwd}/.tmp/nct6687d-1.0.${commitcount}/nct6687d
-	echo '${makefile}' > ${curpwd}/.tmp/nct6687d-1.0.${commitcount}/nct6687d/Makefile
+	cp LICENSE Makefile nct6687.c ${curpwd}/.tmp/nct6687d-1.0.${commitcount}/nct6687d
 	cd .tmp && tar -czvf nct6687d-1.0.${commitcount}.tar.gz nct6687d-1.0.${commitcount} && cd -
 	mkdir -p ${curpwd}/.tmp/rpmbuild/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
 	cp ${curpwd}/.tmp/nct6687d-1.0.${commitcount}.tar.gz ${curpwd}/.tmp/rpmbuild/SOURCES/
@@ -56,8 +54,7 @@ dkms/build:
 dkms/install:
 	rm -rf ${curpwd}/dkms
 	mkdir -p ${curpwd}/dkms
-	cp ${curpwd}/dkms.conf ${curpwd}/nct6687.c ${curpwd}/dkms
-	echo '${makefile}' > ${curpwd}/dkms/Makefile
+	cp ${curpwd}/dkms.conf ${curpwd}/Makefile ${curpwd}/nct6687.c ${curpwd}/dkms
 	sudo rm -rf /usr/src/nct6687d-1
 	sudo cp -rT dkms /usr/src/nct6687d-1
 	sudo dkms install nct6687d/1

dkms.conf

@@ -1,5 +1,6 @@
 PACKAGE_NAME="nct6687d"
 PACKAGE_VERSION="1"
+MAKE[0]="make kver=${kernelver} dkms/build"
 BUILT_MODULE_NAME[0]="nct6687"
 DEST_MODULE_LOCATION[0]="/kernel/drivers/hwmon/"
 AUTOINSTALL="yes"