[nrf noup] boot: zephyr: use asn1parse.c from TF-PSA-Crypto when PSA

With the outdated copied source file we would get
`asn1parse.c:20:10: fatal error: common.h: No such file or directory`
and anyway it's bad practice to do this.

Update the path to use the original file directly as is, and
also make some adjustments to the Kconfig options that select
CONFIG_MBEDTLS_ASN1_PARSE_C.
Select it in all cases because it's needed to make the needed functions
available in the build.

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

Author: tomi-font

boot/zephyr/CMakeLists.txt

@@ -341,7 +341,7 @@ elseif(CONFIG_BOOT_SIGNATURE_TYPE_ED25519 OR CONFIG_BOOT_ENCRYPT_X25519)
   else()
     if(MBEDTLS_ASN1_DIR)
       zephyr_library_sources(
-        ${MBEDTLS_ASN1_DIR}/src/asn1parse.c
+        ${ZEPHYR_OBERON_PSA_CRYPTO_MODULE_DIR}/utilities/asn1parse.c
       )
     endif()
     if(NOT CONFIG_BOOT_SIGNATURE_USING_KMU AND NOT CONFIG_NCS_BOOT_SIGNATURE_USING_ITS)

boot/zephyr/Kconfig

@@ -362,14 +362,14 @@ config BOOT_ED25519_MBEDTLS
 	select BOOT_IMG_HASH_ALG_SHA512_ALLOW
 	select MBEDTLS
 	select MBEDTLS_SHA512
-	select MBEDTLS_ASN1_PARSE_C if MBEDTLS_BUILTIN && !BOOT_KEY_IMPORT_BYPASS_ASN
+	select MBEDTLS_ASN1_PARSE_C if !BOOT_KEY_IMPORT_BYPASS_ASN
 	select BOOT_AES_MBEDTLS_DEPENDENCIES if MBEDTLS_BUILTIN && BOOT_ENCRYPT_IMAGE
 
 config BOOT_ED25519_PSA
 	bool "Use PSA crypto"
 	select BOOT_USE_PSA_CRYPTO
 	select PSA_CRYPTO
-	select MBEDTLS_ASN1_PARSE_C if MBEDTLS_BUILTIN
+	select MBEDTLS_ASN1_PARSE_C
 	select MBEDTLS_ENABLE_HEAP if !PSA_CORE_LITE
 	select BOOT_IMG_HASH_ALG_SHA256_ALLOW if !PSA_CORE_LITE
 	select BOOT_IMG_HASH_ALG_SHA512_ALLOW if !PSA_CORE_LITE