image: Split host code out into its own file

To avoid having #ifdefs in a few functions which are completely different
in the board and host code, create a new image-host.c file.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/image.c b/common/image.c
index ed7f188..3eb6a7f 100644
--- a/common/image.c
+++ b/common/image.c
@@ -18,8 +18,6 @@
 #include <status_led.h>
 #endif
 
-#include <rtc.h>
-
 #if IMAGE_ENABLE_FIT || IMAGE_ENABLE_OF_LIBFDT
 #include <linux/libfdt.h>
 #include <fdt_support.h>
@@ -60,6 +58,7 @@
 
 #include <abuf.h>
 #include <bzlib.h>
+#include <display_options.h>
 #include <gzip.h>
 #include <image.h>
 #include <lz4.h>
@@ -528,41 +527,6 @@
 	return 0;
 }
 
-#ifdef USE_HOSTCC
-void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
-{
-	memmove(to, from, len);
-}
-#endif /* !USE_HOSTCC */
-
-void genimg_print_size(uint32_t size)
-{
-#ifndef USE_HOSTCC
-	printf("%d Bytes = ", size);
-	print_size(size, "\n");
-#else
-	printf("%d Bytes = %.2f KiB = %.2f MiB\n",
-			size, (double)size / 1.024e3,
-			(double)size / 1.048576e6);
-#endif
-}
-
-#if IMAGE_ENABLE_TIMESTAMP
-void genimg_print_time(time_t timestamp)
-{
-#ifndef USE_HOSTCC
-	struct rtc_time tm;
-
-	rtc_to_tm(timestamp, &tm);
-	printf("%4d-%02d-%02d  %2d:%02d:%02d UTC\n",
-			tm.tm_year, tm.tm_mon, tm.tm_mday,
-			tm.tm_hour, tm.tm_min, tm.tm_sec);
-#else
-	printf("%s", ctime(&timestamp));
-#endif
-}
-#endif
-
 const table_entry_t *get_table_entry(const table_entry_t *table, int id)
 {
 	for (; table->id >= 0; ++table) {