board/xilinx/patches: add xilinx_v2024.2 hashes

Add hashes for xilinx_v2024.2 release for zynq boards.

xilinx_v2024.2 release includes:
 - linux 6.6.40
 - uboot 2024.01

Signed-off-by: Neal Frager <neal.frager@amd.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>

board/xilinx/patches/linux/linux.hash

@@ -1,2 +1,3 @@
 # Locally calculated
 sha256  6415cfcfd74e943d6ae44f6c1edcae09bf6cd89410b03c4290bf1464a8368f84  xlnx_rebase_v6.6_LTS_merge_6.6.40.tar.gz
+sha256  8ebbbe2d40597d9a5f36d47a1dfe4caffcef3d9f5ffa059ed4504bb761282593  xlnx_rebase_v6.6_LTS_2024.2.tar.gz

board/xilinx/patches/uboot/uboot.hash

@@ -1,2 +1,3 @@
 # Locally calculated
 sha256  58e391a001d9d8ed347ab3258ff7c8435c866b1ff2b2c22ebc95af592444c0f5  xlnx_rebase_v2024.01_2024.1.tar.gz
+sha256  f1a86ccdbe60bac89177a24bbfd56fc6e8e67823669f0997de563c3cc0ea4dd1  xlnx_rebase_v2024.01_2024.2.tar.gz