package/imx-uuc: fix static build with musl

Use TARGET_CONFIGURE_OPTS to pass -static in LDFLAGS when building
statically

Fixes:
 - http://autobuild.buildroot.org/results/12c08173f83315fb68fe3c3d34a78ed919ba5a79

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit df781e31ca9d695fd6cdf95b2078f608e8fd70d8)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/freescale-imx/imx-uuc/imx-uuc.mk

@@ -14,7 +14,7 @@ IMX_UUC_LICENSE_FILES = COPYING
 IMX_UUC_DEPENDENCIES = host-dosfstools
 
 define IMX_UUC_BUILD_CMDS
-	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) CC=$(TARGET_CC)
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) $(TARGET_CONFIGURE_OPTS)
 endef
 
 define IMX_UUC_INSTALL_TARGET_CMDS