Include psa/build_info.h instead of mbedtls/build_info.h

In PSA headers include psa/build_info.h instead
of mbedtls/build_info.h. In Mbed TLS, both are
equivalent but not in TF-PSA-Crypto where
psa/build_info.h is the correct one.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/include/psa/crypto_sizes.h b/include/psa/crypto_sizes.h
index 5ced47f..31e45fe 100644
--- a/include/psa/crypto_sizes.h
+++ b/include/psa/crypto_sizes.h
@@ -41,7 +41,7 @@
 #define PSA_CRYPTO_SIZES_H
 
 /*
- * Include the build-time configuration information file. Here, we do not
+ * Include the build-time configuration information header. Here, we do not
  * include `"mbedtls/build_info.h"` directly but `"psa/build_info.h"`, which
  * is basically just an alias to it. This is to ease the maintenance of the
  * TF-PSA-Crypto repository which has a different build system and