oprofile: cleanup the style of the OPROFILE_BINARIES definition

There is no need to repeat OPROFILE_BINARIES += many times to add more
values to the variable. Just define it once with all the values, as we
do everywhere else in Buildroot.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/oprofile/oprofile.mk

@@ -12,10 +12,12 @@ OPROFILE_CONF_OPTS = \
 	--disable-account-check \
 	--enable-gui=no \
 	--with-kernel=$(STAGING_DIR)/usr
-OPROFILE_BINARIES = utils/ophelp pp/opannotate pp/oparchive pp/opgprof
-OPROFILE_BINARIES += pp/opreport opjitconv/opjitconv
-OPROFILE_BINARIES += utils/op-check-perfevents libabi/opimport
-OPROFILE_BINARIES += pe_counting/ocount
+
+OPROFILE_BINARIES = \
+	utils/ophelp pp/opannotate pp/oparchive pp/opgprof \
+	pp/opreport opjitconv/opjitconv \
+	utils/op-check-perfevents libabi/opimport \
+	pe_counting/ocount
 
 # No perf_events support in kernel for avr32
 ifneq ($(BR2_avr32),y)