crypto: keembay - CRYPTO_DEV_KEEMBAY_OCS_AES_SM4 should depend on ARCH_KEEMBAY

The Intel Keem Bay Offload and Crypto Subsystem (OCS) is only present on
Intel Keem Bay SoCs.  Hence add a dependency on ARCH_KEEMBAY, to prevent
asking the user about this driver when configuring a kernel without
Intel Keem Bay platform support.

While at it, fix a misspelling of "cipher".

Fixes: 88574332 ("crypto: keembay - Add support for Keem Bay OCS AES/SM4")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/keembay/Kconfig

 config CRYPTO_DEV_KEEMBAY_OCS_AES_SM4
 	tristate "Support for Intel Keem Bay OCS AES/SM4 HW acceleration"
-	depends on OF || COMPILE_TEST
+	depends on ARCH_KEEMBAY || COMPILE_TEST
 	select CRYPTO_SKCIPHER
 	select CRYPTO_AEAD
 	select CRYPTO_ENGINE
 	help
 	  Support for Intel Keem Bay Offload and Crypto Subsystem (OCS) AES and
-	  SM4 cihper hardware acceleration for use with Crypto API.
+	  SM4 cipher hardware acceleration for use with Crypto API.
 
 	  Provides HW acceleration for the following transformations:
 	  cbc(aes), ctr(aes), ccm(aes), gcm(aes), cbc(sm4), ctr(sm4), ccm(sm4)