arm64: Factor out cpucap definitions

For clarity it would be nice to factor cpucap manipulation out of
<asm/cpufeature.h>, and the obvious place would be <asm/cpucap.h>, but
this will clash somewhat with <generated/asm/cpucaps.h>.

Rename <generated/asm/cpucaps.h> to <generated/asm/cpucap-defs.h>,
matching what we do for <generated/asm/sysreg-defs.h>, and introduce a
new <asm/cpucaps.h> which includes the generated header.

Subsequent patches will fill out <asm/cpucaps.h>.

There should be no functional change as a result of this patch.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm64/include/asm/Kbuild

@@ -6,5 +6,5 @@ generic-y += qspinlock.h
 generic-y += parport.h
 generic-y += user.h
 
-generated-y += cpucaps.h
+generated-y += cpucap-defs.h
 generated-y += sysreg-defs.h