irqchip/gic-v3: Use nops macro for Cavium ThunderX erratum 23154

The workaround for Cavium ThunderX erratum 23154 has a homebrew
pipeflush built out of NOP sequences around the read of the IAR.

This patch converts the code to use the new nops macro, which makes it
a little easier to read.

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

1 files changed, 2 insertions, 7 deletions

diff --git a/arch/arm64/include/asm/arch_gicv3.h b/arch/arm64/include/asm/arch_gicv3.h