initramfs-framework: bump PR and fix install-efi and setup-live modules

initramfs-framework: bump PR and fix install-efi and setup-live modules

Bump initramfs-framework PR, as it was missed in the previous
initramfs-framework patch.

These modules are shell scripts so they can be allarch.

Fix the SIGGEN_EXCLUDE_SAFE_RECIPE_DEPS in layer.conf, as these
dependencies moved from the main recipe to these modules.

Finally, set the PR to 4 in the new module recipes to avoid breaking
package feeds.

Fixes [YOCTO #12024].

Signed-off-by: California Sullivan <california.l.sullivan@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>