modules: mbedtls: fix MBEDTLS_PSA_P256M_DRIVER_RAW Kconfig option

Make it depend on MBEDTLS_PSA_P256M_DRIVER_ENABLED instead of
selecting it.

This fixes the build of
tests/crypto/secp256r1/crypto.secp256r1.p256-m_raw on filtered-out
platforms since PR #75441 (83cd9f5a01).

Signed-off-by: Tomi Fontanilles <tomi.fontanilles@nordicsemi.no>

modules/mbedtls/Kconfig.tls-generic

@@ -512,17 +512,15 @@ config MBEDTLS_PSA_P256M_DRIVER_ENABLED
 	imply PSA_WANT_ALG_SHA_256
 	help
 	  Enable support for the optimized sofware implementation of the secp256r1
-	  curve through the standard PSA API interface.
+	  curve through the standard PSA API.
 
 config MBEDTLS_PSA_P256M_DRIVER_RAW
 	bool "Access p256-m driver directly (without PSA interface)"
-	select MBEDTLS_PSA_P256M_DRIVER_ENABLED
+	depends on MBEDTLS_PSA_P256M_DRIVER_ENABLED
 	help
-	  Allow access to p256-m driver directly without using the PSA interface.
+	  Allow direct access to the p256-m driver interface.
-	  Warning: usage of this kconfig is prohibited in Zephyr's code base. Users
+	  Warning: Usage of this Kconfig option is prohibited in Zephyr's codebase.
-			   can make optionally enable it in case very memory constrained
+	           Users can enable it in case of very memory-constrained devices, but be aware that the p256-m interface is absolutely not guaranted to remain stable over time.
-			   devices, but please be aware that the p256-m interface is
-			   absolutely not guaranted to remain stable over time.
 
 config MBEDTLS_SSL_DTLS_CONNECTION_ID
 	bool "DTLS Connection ID extension"

tests/crypto/secp256r1/mbedtls.conf

@@ -1,4 +1,5 @@
 CONFIG_MBEDTLS=y
+CONFIG_MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG=y
 CONFIG_MBEDTLS_PSA_CRYPTO_C=y
 CONFIG_MBEDTLS_PSA_P256M_DRIVER_ENABLED=y
 
@@ -10,6 +11,3 @@ CONFIG_PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_DERIVE=y
 CONFIG_PSA_WANT_ECC_SECP_R1_256=y
 CONFIG_PSA_WANT_ALG_ECDH=y
 CONFIG_PSA_WANT_ALG_ECDSA=y
-
-CONFIG_MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG=y
-CONFIG_ENTROPY_GENERATOR=y

tests/crypto/secp256r1/p256-m_raw.conf

@@ -1,6 +1,5 @@
 CONFIG_MBEDTLS=y
+CONFIG_MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG=y
 CONFIG_MBEDTLS_PSA_CRYPTO_C=y
+CONFIG_MBEDTLS_PSA_P256M_DRIVER_ENABLED=y
 CONFIG_MBEDTLS_PSA_P256M_DRIVER_RAW=y
-
-CONFIG_MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG=y
-CONFIG_ENTROPY_GENERATOR=y

tests/crypto/secp256r1/prj.conf

@@ -1,2 +1,4 @@
 CONFIG_ZTEST_STACK_SIZE=8192
 CONFIG_ZTEST=y
+
+CONFIG_ENTROPY_GENERATOR=y

tests/crypto/secp256r1/tinycrypt.conf

@@ -1,5 +1,3 @@
 CONFIG_TINYCRYPT=y
 CONFIG_TINYCRYPT_ECC_DH=y
 CONFIG_TINYCRYPT_ECC_DSA=y
-
-CONFIG_ENTROPY_GENERATOR=y