build-sys: do not use "label" functions in libsystemd_shared

Author: kaysievers

Makefile.am

@@ -885,8 +885,6 @@ libsystemd_shared_la_SOURCES = \
 	src/shared/memfd.h \
 	src/shared/uid-range.c \
 	src/shared/uid-range.h \
-	src/shared/switch-root.h \
-	src/shared/switch-root.c \
 	src/shared/nss-util.h
 
 if HAVE_UTMP
@@ -934,6 +932,8 @@ libsystemd_label_la_SOURCES = \
 	src/shared/mkdir-label.c \
 	src/shared/ask-password-api.c \
 	src/shared/ask-password-api.h \
+	src/shared/switch-root.h \
+	src/shared/switch-root.c \
 	src/shared/fileio-label.c \
 	src/shared/fileio-label.h \
 	src/shared/dev-setup.c \