x86/fpu: Mark init functions __init

stable inclusion
from stable-v5.10.189
commit 2462bc3ef0611646d94658ff250bb16669347361
category: bugfix
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I8LVBS
CVE: N/A
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=2462bc3ef0611646d94658ff250bb16669347361



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Intel-SIG: commit 2462bc3ef061 ("x86/fpu: Mark init functions __init")
Backport x86 related patches from 5.10.189 upstream

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commit 1703db2b upstream

No point in keeping them around.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230613224545.841685728@linutronix.de


Signed-off-by: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Aichun Shi <aichun.shi@intel.com>