KVM: arm64: make the hyp vector table entries local

Make the hyp vector table entries local functions so they
are not accidentally referred to outside of this file.

Using SYM_CODE_START_LOCAL matches the other vector tables (in hyp-stub.S,
hibernate-asm.S and entry.S)
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210222164956.43514-1-joey.gouly@arm.comSigned-off-by: Will Deacon <will@kernel.org>

arch/arm64/kvm/hyp/hyp-entry.S

@@ -119,7 +119,7 @@ el2_error:
 
 .macro invalid_vector	label, target = __guest_exit_panic
 	.align	2
-SYM_CODE_START(\label)
+SYM_CODE_START_LOCAL(\label)
 	b \target
 SYM_CODE_END(\label)
 .endm