atf: Move the tests back to the tests package

Commit 9065390ddc moved atf to its own package, but mistakenly moved
the tests as well.  Put the tests back into the test package.

Approved by:	re (cperciva)
Fixes:	9065390ddc ("packages: Remove the tests-dev package")
MFC after:	1 day
Reviewed by:	emaste
Sponsored by:	https://www.patreon.com/bsdivy
Differential Revision:	https://reviews.freebsd.org/D53594

(cherry picked from commit 4b342830ab)
(cherry picked from commit cdfa913977)

lib/atf/Makefile.inc

@@ -24,7 +24,7 @@
 # SUCH DAMAGE.
 #
 
-PACKAGE=	atf
+PACKAGE?=	atf
 LIB_PACKAGE=
 CFLAGS+=	-DHAVE_CONFIG_H
 

lib/atf/libatf-c++/tests/Makefile

@@ -1,5 +1,7 @@
 .include <bsd.init.mk>
 
+PACKAGE=	tests
+
 TESTS_SUBDIRS=	detail
 
 ATF=		${SRCTOP}/contrib/atf

lib/atf/libatf-c++/tests/detail/Makefile

@@ -1,5 +1,7 @@
 .include <bsd.init.mk>
 
+PACKAGE=	tests
+
 TESTSDIR=	${TESTSBASE}/lib/atf/libatf-c++/detail
 
 ATF=		${SRCTOP}/contrib/atf

lib/atf/libatf-c/tests/Makefile

@@ -1,5 +1,7 @@
 .include <bsd.init.mk>
 
+PACKAGE=	tests
+
 TESTS_SUBDIRS=	detail
 
 ATF=		${SRCTOP}/contrib/atf

lib/atf/libatf-c/tests/detail/Makefile

@@ -1,5 +1,7 @@
 .include <bsd.init.mk>
 
+PACKAGE=	tests
+
 TESTSDIR=	${TESTSBASE}/lib/atf/libatf-c/detail
 
 ATF=		${SRCTOP}/contrib/atf

lib/atf/tests/Makefile

@@ -1,4 +1,7 @@
 .PATH:		${SRCTOP}/tests
+
+PACKAGE=	tests
+
 KYUAFILE=	yes
 
 SUBDIR=		test-programs

libexec/atf/Makefile.inc

@@ -24,7 +24,7 @@
 # SUCH DAMAGE.
 #
 
-PACKAGE=	atf
+PACKAGE?=	atf
 LIB_PACKAGE=
 CFLAGS+=	-DHAVE_CONFIG_H
 

libexec/atf/atf-check/tests/Makefile

@@ -1,6 +1,8 @@
 ATF=		${SRCTOP}/contrib/atf
 .PATH:		${ATF}/atf-sh
 
+PACKAGE=	tests
+
 ATF_TESTS_SH=	atf-check_test
 
 .include <bsd.test.mk>

libexec/atf/tests/Makefile

@@ -1,4 +1,7 @@
 .PATH:		${SRCTOP}/tests
+
+PACKAGE=	tests
+
 KYUAFILE=	yes
 
 .include <bsd.test.mk>