cli, manpage: Clean up occurrences of old image argument

--include argument was introduced and replaced --image argument in
commit 45d50a101e8073191e6d88143990ed91d3bfe815

This patch cleans up remaining few places where old `--image`
argument was mentioned so that now all the documentation has
`--include`. --image is deprecated.

Both old --image and new --include have the same short version -i
and it remains the same. The code remains the same since the code
handles --include already.

Tested by running
flashrom -h
man ./flashrom.8.tmpl

Ticket: https://ticket.coreboot.org/issues/372

Change-Id: If457e2b8548034868105b515125d7e8b4d5f6134
Signed-off-by: Anastasia Klimchuk <aklm@chromium.org>
Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/70003
Original-Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Original-Reviewed-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/71737
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/flashrom.8.tmpl b/flashrom.8.tmpl
index 402fa5d..3a11f89 100644
--- a/flashrom.8.tmpl
+++ b/flashrom.8.tmpl
@@ -48,7 +48,8 @@
           \fB\-p\fR <programmername>[:<parameters>] [\fB\-c\fR <chipname>]
             (\fB\-\-flash\-name\fR|\fB\-\-flash\-size\fR|
              [\fB\-E\fR|\fB\-r\fR <file>|\fB\-w\fR <file>|\fB\-v\fR <file>]
-             [(\fB\-l\fR <file>|\fB\-\-ifd|\fB \-\-fmap\fR|\fB\-\-fmap-file\fR <file>) [\fB\-i\fR <image>]]
+             [(\fB\-l\fR <file>|\fB\-\-ifd\fR|\fB\-\-fmap\fR|\fB\-\-fmap-file\fR <file>)
+              [\fB\-i\fR <include>]...]
              [\fB\-n\fR] [\fB\-N\fR] [\fB\-f\fR])]
          [\fB\-V\fR[\fBV\fR[\fBV\fR]]] [\fB-o\fR <logfile>]
 .SH DESCRIPTION