Fixed Makefile syntax

Makefile

@@ -33,7 +33,7 @@ all:
 # This condition should be removed/modified in the future when QEMU TCG will catch up with real world Skylake CPU and/or Cortex-A7 and/or Cortex-A75 and/or Cortex-A78AE.
 	if [[ `lscpu | grep -c "^Model name:.*Skylake"` = 0 ]] && \
 	   [[ `lscpu | grep -c "^Model name:.*Carmel"` = 0 ]] && \
-	   [[ `lscpu | grep -c "^Model name:.*Cortex-A78AE"` = 0 ]] &&
+	   [[ `lscpu | grep -c "^Model name:.*Cortex-A78AE"` = 0 ]] && \
 	   ! [[ ! -c /dev/kvm && `uname -m` = 'armv7l' ]] ; then \
 	    chown -Rv nobody libguestfs-1.45.6 ; \
 	    su nobody -s /bin/bash -c "PATH=$$PATH SKIP_QEMU_FORCE_TCG_SH=1 SKIP_TEST_RSYNC_SH=1 make -C libguestfs-1.45.6 check" ; \