objtool: x86: Move orc_gen and orc_dump definitions to x86 Build file.

openEuler inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8B8HU
CVE: NA

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As arm64 does not support orc, this commit moves the
orc_gen and orc_dump to the x86 Build file to ensure
that they are only built for the x86 architecture.

Signed-off-by: Yihuan Pan <xun794@gmail.com>
2 files changed