lib/crypto: nh: Restore dependency of arch code on !KMSAN

Since the architecture-specific implementations of NH initialize memory
in assembly code, they aren't compatible with KMSAN as-is.

Fixes: 382de74 ("lib/crypto: nh: Add NH library")
Link: https://lore.kernel.org/r/20260105053652.1708299-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>

Author: Eric Biggers

lib/crypto/Kconfig

@@ -116,7 +116,7 @@ config CRYPTO_LIB_NH
 
 config CRYPTO_LIB_NH_ARCH
 	bool
-	depends on CRYPTO_LIB_NH && !UML
+	depends on CRYPTO_LIB_NH && !UML && !KMSAN
 	default y if ARM && KERNEL_MODE_NEON
 	default y if ARM64 && KERNEL_MODE_NEON
 	default y if X86_64