arm64: dts: ns2: Fixed QSPI compatible string

[ Upstream commit 686e0a0c8c61e0e3f55321d0181fece3efd92777 ]

The string was incorrectly defined before from least to most specific,
swap the compatible strings accordingly.

Fixes: ff73917d ("ARM64: dts: Add QSPI Device Tree node for NS2")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>