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Fix fw_rsc_mapping alignment

Carl Soyseth requested to merge feature/fw_rsc_mapping_alignment into main

fw_rsc_mapping is part of the OpenAMP resource table. When compiled with the packed attribute, an 8-bit num_ranges misaligns subsequent 32-bit fields.

Change num_ranges to u32 to preserve 32-bit alignment in the packed layout and keep the table consistent with the layout expected by the remoteproc driver in the Ethos-U Linux Driver Stack.

Change-Id: Ib7f54a5bff8d0c59349db5e75f603c55bdf47915 Signed-off-by: Carl Söyseth carl.soeyseth@arm.com

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