Fixed MTP to work with TWRP

tools/testing/selftests/Makefile

@@ -0,0 +1,50 @@
+TARGETS = breakpoints
+TARGETS += cpu-hotplug
+TARGETS += efivarfs
+TARGETS += kcmp
+TARGETS += memfd
+TARGETS += memory-hotplug
+TARGETS += mqueue
+TARGETS += mount
+TARGETS += net
+TARGETS += ptrace
+TARGETS += timers
+TARGETS += vm
+TARGETS += powerpc
+TARGETS += user
+TARGETS += sysctl
+TARGETS += firmware
+TARGETS += ftrace
+
+TARGETS_HOTPLUG = cpu-hotplug
+TARGETS_HOTPLUG += memory-hotplug
+
+all:
+	for TARGET in $(TARGETS); do \
+		make -C $$TARGET; \
+	done;
+
+run_tests: all
+	for TARGET in $(TARGETS); do \
+		make -C $$TARGET run_tests; \
+	done;
+
+hotplug:
+	for TARGET in $(TARGETS_HOTPLUG); do \
+		make -C $$TARGET; \
+	done;
+
+run_hotplug: hotplug
+	for TARGET in $(TARGETS_HOTPLUG); do \
+		make -C $$TARGET run_full_test; \
+	done;
+
+clean_hotplug:
+	for TARGET in $(TARGETS_HOTPLUG); do \
+		make -C $$TARGET clean; \
+	done;
+
+clean:
+	for TARGET in $(TARGETS); do \
+		make -C $$TARGET clean; \
+	done;