atop: Use make systemdinstall

Fix the error below:

    [BEE] => entering bee_install() ..
    [BEE] make -j120 install PREFIX=/usr EPREFIX=/usr BINDIR=/usr/bin SBINDIR=/usr/sbin LIBEXECDIR=/usr/libexec SYSCONFDIR=/etc SHAREDSTATEDIR=/var LOCALSTATEDIR=/var LIBDIR=/usr/lib INCLUDEDIR=
    /usr/include DATAROOTDIR=/usr/share DATADIR=/usr/share INFODIR=/usr/share/info LOCALEDIR=/usr/share/locale MANDIR=/usr/share/man DOCDIR=/usr/share/doc/atop DESTDIR=/dev/shm/bee-root/atop/ato
    p-2.4.0-0/image
    Choose either 'make systemdinstall' or 'make sysvinstall'
    [BEE] <= leaving bee_install() ..

atop.be0

@@ -55,9 +55,9 @@ SRCURL[0]="https://www.atoptool.nl/download/atop-${PKGVERSION}.tar.gz"
 #    bee_build
 #}
 
-#mee_install() {
-#    bee_install
-#}
+mee_install() {
+    start_cmd make systemdinstall DESTDIR="${D}"
+}
 ## by default this may be 'make install DESTDIR="${D}"'
 
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