x86/setup: Make relocated_ramdisk a local variable of relocate_initrd()

mainline inclusion
from mainline-v6.7-rc1
commit f7a25cf1d4707da39b80df96a3be8a8abd07c35b
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I8XRMW


CVE: NA

--------------------------------

After

  0b62f6cb0773 ("x86/microcode/32: Move early loading after paging enable"),

the global variable relocated_ramdisk is no longer used anywhere except
for the relocate_initrd() function. Make it a local variable of that
function.

Intel-SIG: commit f7a25cf1d470 Make relocated_ramdisk a local variable of relocate_initrd().
Microcode restructuring backport.

Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Baoquan He <bhe@redhat.com>
Link: https://lore.kernel.org/r/20231113034026.130679-1-ytcoode@gmail.com


[ Aubrey Li: amend commit log ]
Signed-off-by: Aubrey Li <aubrey.li@linux.intel.com>