fuzzers: 065(b): Makefile: Rename clean_all to clean

The fuzzer Makefile calls 'make clean' of all fuzzers. Both Makefiles
do not have a clean but a clean_all command. Rename to also clean these data.

Signed-off-by: Daniel Schultz <d.schultz@phytec.de>

fuzzers/065-gtp-common-pips/Makefile

diff --git a/fuzzers/065-gtp-common-pips/Makefile b/fuzzers/065-gtp-common-pips/Makefile
index 389544b..5458067 100644
--- a/fuzzers/065-gtp-common-pips/Makefile
+++ b/fuzzers/065-gtp-common-pips/Makefile
@@ -53,7 +53,7 @@
 	mkdir -p $(BUILD_DIR)
 	cd $(BUILD_DIR)/ && ${XRAY_VIVADO} -mode batch -source ${FUZDIR}/output_cmt.tcl
 
-clean_all:
+clean:
 	rm -rf build_* run.*.ok
 
 pushdb: database

fuzzers/065b-gtp-common-pips/Makefile

diff --git a/fuzzers/065b-gtp-common-pips/Makefile b/fuzzers/065b-gtp-common-pips/Makefile
index 355b460..7338091 100644
--- a/fuzzers/065b-gtp-common-pips/Makefile
+++ b/fuzzers/065b-gtp-common-pips/Makefile
@@ -52,7 +52,7 @@
 	mkdir -p $(BUILD_DIR)
 	cd $(BUILD_DIR)/ && ${XRAY_VIVADO} -mode batch -source ${FUZDIR}/output_cmt.tcl
 
-clean_all:
+clean:
 	rm -rf build_* run.*.ok
 
 pushdb: database