arm64: asm-offsets: remove DMA_{TO,FROM}_DEVICE

arm64: asm-offsets: remove DMA_{TO,FROM}_DEVICE

The DMA_TO_DEVICE and DMA_FROM_DEVICE defintitons in asm-offsets
duplicate the common defintions from <linux/dma-direction.h> (which used
to live in <linux/dma-mapping.h>), and haven't been used from asseembly
code since commit:

  7eacf1858bc86fe9 ("arm64: mm: Remove assembly DMA cache maintenance wrappers")

Remove them both.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20241007123921.549340-7-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>