Fix to get swupdate compiled with the GCC to CC change.

recipes-support/swupdate/swupdate.inc

@@ -26,7 +26,7 @@ FILES_${PN} = "${bindir}/* ${sysconfdir}"
 
 S = "${WORKDIR}/git/"
 
-EXTRA_OEMAKE += "V=1 ARCH=${TARGET_ARCH} CROSS_COMPILE=${TARGET_PREFIX} SKIP_STRIP=y"
+EXTRA_OEMAKE += " HOSTCC="${BUILD_CC}" HOSTCXX="${BUILD_CXX}" V=1 ARCH=${TARGET_ARCH} CROSS_COMPILE=${TARGET_PREFIX} SKIP_STRIP=y"
 
 DEPENDS += "kern-tools-native"