package/go-bootstrap: Build host tools with host CC

Use the host compiler when building host tools.

The go build system is not compatable with ccache, so use HOSTCC_NOCCACHE
here.  See golang/go#11685.

Signed-off-by: Geoff Levand <geoff@infradead.org>

package/go-bootstrap/go-bootstrap.mk

@@ -19,11 +19,14 @@ HOST_GO_BOOTSTRAP_DEPENDENCIES = toolchain
 
 HOST_GO_BOOTSTRAP_ROOT = $(HOST_DIR)/usr/lib/go-$(GO_BOOTSTRAP_VERSION)
 
+# The go build system is not compatable with ccache, so use HOSTCC_NOCCACHE
+# here.  See https://github.com/golang/go/issues/11685.
 HOST_GO_BOOTSTRAP_MAKE_ENV = \
 	GOOS=linux \
 	GOROOT_FINAL="$(HOST_GO_BOOTSTRAP_ROOT)" \
 	GOROOT="$(@D)" \
 	GOBIN="$(@D)/bin" \
+	CC=$(HOSTCC_NOCCACHE) \
 	CGO_ENABLED=0
 
 define HOST_GO_BOOTSTRAP_BUILD_CMDS