arch/arm: drop useless conditional dependencies for 64-bit-only cores

Those cores are already guarded by a 64-bit-only condition, so they
can't even select additional options in non-64-bit mode anyway...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

arch/Config.in.arm

@@ -440,27 +440,18 @@ if BR2_ARCH_IS_64
 comment "armv8.1a cores"
 config BR2_thunderx2t99
 	bool "thunderx2t99"
-	select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64
-	select BR2_ARM_CPU_HAS_NEON if !BR2_ARCH_IS_64
-	select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
 	select BR2_ARM_CPU_HAS_FP_ARMV8
 	select BR2_ARM_CPU_ARMV8A
 	select BR2_ARCH_HAS_MMU_OPTIONAL
 	select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
 config BR2_thunderx2t99p1
 	bool "thunderx2t99p1"
-	select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64
-	select BR2_ARM_CPU_HAS_NEON if !BR2_ARCH_IS_64
-	select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
 	select BR2_ARM_CPU_HAS_FP_ARMV8
 	select BR2_ARM_CPU_ARMV8A
 	select BR2_ARCH_HAS_MMU_OPTIONAL
 	select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
 config BR2_vulcan
 	bool "vulcan"
-	select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64
-	select BR2_ARM_CPU_HAS_NEON if !BR2_ARCH_IS_64
-	select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
 	select BR2_ARM_CPU_HAS_FP_ARMV8
 	select BR2_ARM_CPU_ARMV8A
 	select BR2_ARCH_HAS_MMU_OPTIONAL