main/linux-grsec: build ehci-hcd into kernel

fixes #2965
main/dahdi-linux-grsec: rebuild against kernel 3.14.19-r3
main/flashcache-grsec: rebuild against kernel 3.14.19-r3
main/ipfw-grsec: rebuild against kernel 3.14.19-r3
main/xtables-addons-grsec: rebuild against kernel 3.14.19-r3
testing/ipt-netflow-grsec: rebuild against kernel 3.14.19-r3
testing/spl-grsec: rebuild against kernel 3.14.19-r3
testing/virtualbox-additions-grsec: rebuild against kernel 3.14.19-r3