x86/apic: Drop AMD Extended Interrupt LVT macros

x86/apic: Drop AMD Extended Interrupt LVT macros

AMD defines Extended Interrupt Local Vector Table (EILVT) registers to allow
for additional interrupt sources. While the APIC registers for those are
unique to AMD, the format of those registers follows the standard LVT
registers. Drop EILVT-specific macros in favor of the standard APIC
LVT macros.

Drop unused APIC_EILVT_NR_AMD_K8 and APIC_EILVT_LVTOFF while at it.

No functional change.

  [ bp: Merge the two cleanup patches into one. ]

Signed-off-by: Naveen N Rao (AMD) <naveen@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Manali Shukla <manali.shukla@amd.com>
Link: https://patch.msgid.link/b98d69037c0102d2ccd082a941888a689cd214c9.1775019269.git.naveen@kernel.org