Integrate yocto-install/fix_mr48

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Commit: seco-ne/tools/yocto-install@cd4f100f

fng-install: fix postinstall-status file path

The status file cannot be found when processing do_installation():
cat: can't open '/mnt/target/var/volatile//tmp/yocto-postinstall-status': No such file or directory

This happends because:
- target rootfs is not mounted at that moment
- ${ABSTARGETTMP}/tmp is not persistant (all files will be removed after umount).

Switch back to /tmp as it's shared between fngsystem and target rootfs
(mount -o bind /tmp $TARGETROOT/tmp).

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Commit: seco-ne/tools/yocto-install@a504cea4

prepare-bootpartition: fix checking of result

Fix missing invert of exit code for "sed" command to correctly return error.

SRCREV.conf

@@ -21,5 +21,5 @@ SRCREV:pn-touchcal-conv = "2ffe2deaa9213979820b935a6de921fcee3aa33c"
 SRCREV:pn-u-boot-seco-imx = "595c90c9a5b2a1ad8d27d6f126dadca5393bb397"
 SRCREV:pn-u-boot-seco-mtk = "903b171baaeb0a572f820bfe65f1e4962fe3233b"
 SRCREV:pn-xconfig = "ec20c575ad19941cf1d90d0cc0dbda2ca27db7fc"
-SRCREV:pn-yocto-install = "29c7a97d5fa53061d4496e1b6a3019c2640a36d7"
+SRCREV:pn-yocto-install = "cd4f100fd6144870d7806069620ab43ae31a6cb7"
 SRCREV:pn-seco-stm32 = "8a7290864546dc956d8979f65d0a0d64f3cc5961"