[PATCH v3 6/9] powerpc: Add functions to read ELF files of any endianness.

A little endian kernel might need to kexec a big endian kernel (the opposite is less likely but could happen as well), so we can't just cast the buffer with the binary to ELF structs and use them as is done elsewhere. This patch adds functions which do byte-swapping as necessary when populating

[PATCH v3 6/9] powerpc: Add functions to read ELF files of any endianness.

A little endian kernel might need to kexec a big endian kernel (the opposite is less likely but could happen as well), so we can't just cast the buffer with the binary to ELF structs and use them as is done elsewhere. This patch adds functions which do byte-swapping as necessary when populating