vendor/libhyperkit: fix cgo LDFLAGS and ramdisk_start in kexec.c

- qcow2: remove go generate 'mv .o .syso', use '#cgo LDFLAGS: -lfoo.o'

- kexec: temporary fix ramdisk_start to twice size
  - it would be incorrect, but can boot large size kernel.
  - Tested tinycore, debian testing, ubuntu yakkety, minikube-iso and
    boot2docker

Signed-off-by: Koichi Shiraishi <zchee.io@gmail.com>

Author: zchee

Makefile

@@ -143,7 +143,7 @@ OCAML_LDLIBS := -L $(OCAML_WHERE) \
 	-lasmrun -lbigarray -lunix
 CGO_CFLAGS += -DHAVE_OCAML=1 -DHAVE_OCAML_QCOW=1 -DHAVE_OCAML=1 -I$(OCAML_WHERE)
 CGO_LDFLAGS += $(OCAML_LDLIBS)
-bin/docker-machine-driver-xhyve: vendor/github.com/zchee/libhyperkit/mirage_block_ocaml.syso
+bin/docker-machine-driver-xhyve: vendor/github.com/zchee/libhyperkit/mirage_block_ocaml.o
 endif
 endif
 
@@ -174,7 +174,7 @@ default: build
 
 build: bin/docker-machine-driver-xhyve
 
-vendor/github.com/zchee/libhyperkit/mirage_block_ocaml.syso:
+vendor/github.com/zchee/libhyperkit/mirage_block_ocaml.o:
 	$(VERBOSE) $(GO_CMD) generate $(GO_BUILD_FLAG) $(GO_VERBOSE) ./vendor/github.com/zchee/libhyperkit
 
 bin/docker-machine-driver-xhyve:

vendor/github.com/zchee/libhyperkit/kexec.c

@@ -120,7 +120,7 @@
 			"importpath": "github.com/zchee/libhyperkit",
 			"repository": "https://github.com/zchee/libhyperkit",
 			"vcs": "git",
-			"revision": "6e3f2962326d2f2b095f1ad988bdaf5b6cfe3665",
+			"revision": "e41061b1166fde4a17c134e22d15a744d18b0a90",
 			"branch": "master",
 			"notests": true
 		}