docs: add distro comparison, recommend dumpling-wayland for Qt/glibc

Key updates:
- README: comprehensive distro comparison table (spaetzle vs dumpling-wayland)
- Recommend dumpling-wayland (glibc) for Qt/GUI applications
- spaetzle (musl) explicitly blocks Qt: SKIP_RECIPE[tq-image-qt6]
- Both distros are 2038-safe (glibc 2.39 and musl 1.2+ both use 64-bit time_t)
- Updated 2038 analysis to cover both C library options
- Updated license tables with both glibc and musl entries
- Fixed remaining config references (imx → mainline)
- Added image availability matrix per distro
- Corrected package versions to match Scarthgap 5.0.11

docs/03-license-analysis/UT-license-table-excel.md

@@ -1,19 +1,15 @@
-Package|Version|Recipe|License|MilitaryUse|SourceLocation|Notes
----|---|---|---|---|---|---
-linux-yocto|6.6.y|linux-yocto_6.6|GPL-2.0-only|Yes|sources/poky/meta/recipes-kernel/linux/|Kernel with 2038 support
-u-boot-tq|2023.10|u-boot-tq_2023.10|GPL-2.0+|Yes|sources/meta-tq/recipes-bsp/u-boot/|Bootloader
-glibc|2.38|glibc_2.38|LGPL-2.1+|Yes|sources/poky/meta/recipes-core/glibc/|C library with 64-bit time_t
-busybox|1.36.1|busybox_1.36|GPL-2.0-only|Yes|sources/poky/meta/recipes-core/busybox/|Core utilities
-systemd|254|systemd_254|LGPL-2.1+|Yes|sources/poky/meta/recipes-core/systemd/|Init system
-e2fsprogs|1.47.0|e2fsprogs_1.47|GPL-2.0+|Yes|sources/poky/meta/recipes-devtools/e2fsprogs/|Filesystem tools
-iptables|1.8.9|iptables_1.8|GPL-2.0+|Yes|sources/poky/meta/recipes-extended/iptables/|Firewall
-openssl|3.1.4|openssl_3.1|Apache-2.0|Yes|sources/poky/meta/recipes-connectivity/openssl/|Crypto library
-dropbear|2022.83|dropbear_2022.83|MIT|Yes|sources/poky/meta/recipes-core/dropbear/|SSH server
-util-linux|2.39|util-linux_2.39|GPL-2.0+|Yes|sources/poky/meta/recipes-core/util-linux/|System utilities
-gcc|13.2|gcc_13.2|GPL-3.0+|Review|sources/poky/meta/recipes-devtools/gcc/|Compiler suite
-binutils|2.40|binutils_2.40|GPL-3.0+|Review|sources/poky/meta/recipes-devtools/binutils/|Linker/assembler
-coreutils|9.3|coreutils_9.3|GPL-3.0+|Review|sources/poky/meta/recipes-core/coreutils/|Core GNU utils
-bash|5.2|bash_5.2|GPL-3.0+|Review|sources/poky/meta/recipes-extended/bash/|Shell
-imx-firmware|N/A|firmware-imx|NXP-SLA|Review|sources/meta-tq/recipes-bsp/firmware/|NXP firmware blobs
-imx-gpu-viv|6.4.11|imx-gpu-viv|Proprietary|Review|sources/meta-tq/recipes-graphics/|Vivante GPU driver
-linux-firmware|N/A|linux-firmware|Various|Review|sources/poky/meta/recipes-kernel/linux-firmware/|Various vendor blobs
+# License Table (Excel-compatible)
+
+| Package | Version | License | 2038-Safe | Military Use | Notes |
+|---------|---------|---------|-----------|-------------|-------|
+| linux-mainline | 6.x | GPL-2.0-only | Yes | Yes | Mainline kernel |
+| u-boot-tq | 2023.10+ | GPL-2.0+ | Yes | Yes | Bootloader |
+| glibc | 2.39 | LGPL-2.1+ | Yes | Yes | C lib (dumpling-wayland) |
+| musl | 1.2+ | MIT | Yes | Yes | C lib (spaetzle) |
+| busybox | 1.36+ | GPL-2.0-only | Yes | Yes | spaetzle only |
+| systemd | 254+ | LGPL-2.1+ | Yes | Yes | dumpling-wayland only |
+| gcc | 13.4 | GPL-3.0 + RLE | Yes | Review | Runtime exception |
+| openssl | 3.x | Apache-2.0 | Yes | Yes | Crypto |
+| Qt6 | 6.x | GPL-2.0/LGPL-3.0 | Yes | Yes | dumpling-wayland only |
+| imx-firmware | N/A | NXP-EULA | N/A | Review | Proprietary |
+| linux-firmware | N/A | Various | N/A | Review | Vendor blobs |