[PATCH for 4.17] arm: fix Kconfig symbol dependency on arm features

[Luca Fancellu <luca.fancellu@xxxxxxx>]

The commit 3c2a14ea81c7 is introducing some unsupported arm features
that by default are disabled and are used for the cpufeature.c code.

As they are disabled by default, a typo in the Kconfig symbol they
depend on has landed in the codebase unnoticed, instead of depending
on ARM64 which does not exist, fix the code to depend on ARM_64 that
is the intended symbol.

Fixes: 3c2a14ea81c7 ("arm: Define kconfig symbols used by arm64 cpufeatures")
Signed-off-by: Luca Fancellu <luca.fancellu@xxxxxxx>
---
 xen/arch/arm/Kconfig | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/xen/arch/arm/Kconfig b/xen/arch/arm/Kconfig
index 1fe5faf847b8..52a05f704da5 100644
--- a/xen/arch/arm/Kconfig
+++ b/xen/arch/arm/Kconfig
@@ -105,28 +105,28 @@ config HARDEN_BRANCH_PREDICTOR
 
 config ARM64_PTR_AUTH
        def_bool n
-       depends on ARM64
+       depends on ARM_64
        help
          Pointer authentication support.
          This feature is not supported in Xen.
 
 config ARM64_SVE
        def_bool n
-       depends on ARM64
+       depends on ARM_64
        help
          Scalar Vector Extension support.
          This feature is not supported in Xen.
 
 config ARM64_MTE
        def_bool n
-       depends on ARM64
+       depends on ARM_64
        help
          Memory Tagging Extension support.
          This feature is not supported in Xen.
 
 config ARM64_BTI
        def_bool n
-       depends on ARM64
+       depends on ARM_64
        help
          Branch Target Identification support.
          This feature is not supported in Xen.
-- 
2.17.1