dev-manual, ref-manual: Image format implementation changes

Recently a number of changes have happened on the implementation
side of some image formats, and a few have been renamed.
The u-boot image signing code is now always available and no
longer in a stand-alone file.  The vmdk/mdi/qcow2 images have
been removed and are now just a conversion type that is applied
to wic images.

Reported-by: Tom Rini <trini@konsulko.com>
(From yocto-docs rev: ce86da3d48507cee12208e0138c285b4be83d8cd)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/ref-manual/ref-variables.xml

@@ -3989,14 +3989,14 @@
 
         <glossentry id='var-EFI_PROVIDER'><glossterm>EFI_PROVIDER</glossterm>
             <info>
-                EFI_PROVIDER[doc] = "When building bootable images (i.e. where hddimg or vmdk is in IMAGE_FSTYPES), the EFI_PROVIDER variable specifies the EFI bootloader to use."
+                EFI_PROVIDER[doc] = "When building bootable images (i.e. where hddimg, iso, or live is in IMAGE_FSTYPES), the EFI_PROVIDER variable specifies the EFI bootloader to use."
             </info>
             <glossdef>
                 <para role="glossdeffirst">
 <!--                <para role="glossdeffirst"><imagedata fileref="figures/define-generic.png" /> -->
                     When building bootable images (i.e. where
-                    <filename>hddimg</filename> or <filename>vmdk</filename>
-                    is in
+                    <filename>hddimg</filename>, <filename>iso</filename>,
+                    or <filename>vmdk</filename> is in
                     <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>),
                     the <filename>EFI_PROVIDER</filename> variable specifies
                     the EFI bootloader to use.
@@ -6315,7 +6315,6 @@
      jffs2
      jffs2.sum
      multiubi
-     qcow2
      squashfs
      squashfs-lzo
      squashfs-xz
@@ -6326,8 +6325,6 @@
      tar.xz
      ubi
      ubifs
-     vdi
-     vmdk
      wic
      wic.bz2
      wic.gz