gadgetfs-test: use $(TARGET_MAKE_ENV) when calling $(MAKE)

Signed-off-by: Gustavo Zacarias <gustavo.zacarias@free-electrons.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/gadgetfs-test/gadgetfs-test.mk

@@ -15,11 +15,11 @@ GADGETFS_TEST_MAKEOPTS += USE_AIO=y
 endif
 
 define GADGETFS_TEST_BUILD_CMDS
-	$(MAKE) -C $(@D) $(GADGETFS_TEST_MAKEOPTS)
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) $(GADGETFS_TEST_MAKEOPTS)
 endef
 
 define GADGETFS_TEST_INSTALL_TARGET_CMDS
-	$(MAKE) -C $(@D) DESTDIR=$(TARGET_DIR) prefix=/usr install
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) DESTDIR=$(TARGET_DIR) prefix=/usr install
 endef
 
 $(eval $(generic-package))