ccache: fix the indentation

Commit "packages: indentation cleanup" broke the build of master.
This commit reverse the patch on just ccache package and fix that issue.

Signed-off-by: Jerzy Grzegorek <jerzy.grzegorek@trzebnica.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/ccache/ccache.mk

@@ -66,10 +66,10 @@ ccache-stats: host-ccache
 
 ccache-options: host-ccache
 ifeq ($(CCACHE_OPTIONS),)
-$(Q)echo "Usage: make ccache-options CCACHE_OPTIONS=\"opts\""
-$(Q)echo "where 'opts' corresponds to one or more valid ccache options" \
-"(see ccache help text below)"
-$(Q)echo
+	$(Q)echo "Usage: make ccache-options CCACHE_OPTIONS=\"opts\""
+	$(Q)echo "where 'opts' corresponds to one or more valid ccache options" \
+	"(see ccache help text below)"
+	$(Q)echo
 endif
-$(Q)$(CCACHE) $(CCACHE_OPTIONS)
+	$(Q)$(CCACHE) $(CCACHE_OPTIONS)
 endif