omap-u-boot-utils: use $(HOST_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/omap-u-boot-utils/omap-u-boot-utils.mk

@@ -10,7 +10,7 @@ OMAP_U_BOOT_UTILS_LICENSE = GPLv2, GPLv2+
 OMAP_U_BOOT_UTILS_LICENSE_FILES = COPYING
 
 define HOST_OMAP_U_BOOT_UTILS_BUILD_CMDS
-	$(MAKE) -C $(@D)
+	$(HOST_MAKE_ENV) $(MAKE) -C $(@D)
 endef
 
 define HOST_OMAP_U_BOOT_UTILS_INSTALL_CMDS