arm64: mm: Introduce a C wrapper for by-range TLB invalidation

As part of efforts to reduce our reliance on complex preprocessor macros
for TLB invalidation routines, introduce a new C wrapper for by-range
TLB invalidation which can be used instead of the __tlbi() macro and can
additionally be called from C code.

Each specific tlbi range op is implemented as a C function and the
appropriate function pointer is passed to __tlbi_range(). Since
everything is declared inline and is statically resolvable, the compiler
will convert the indirect function call to a direct inline execution.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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