Fix leftover comment follow-ups from @bzbarsky-apple from project-chip#28899

Author: tcarmelveilleux

src/crypto/CHIPCryptoPAL.h

@@ -755,7 +755,7 @@ CHIP_ERROR AES_CTR_crypt(const uint8_t * input, size_t input_length, const Aes12
  * be configured to ignore CSR requested subject.
  *
  * @param keypair The key pair for which a CSR should be generated. Must not be null.
- * @param csr_span Span to hold the resulting CSR. Must be at least kMIN_CSR_Buffer_Size.
+ * @param csr_span Span to hold the resulting CSR. Must have size at least kMIN_CSR_Buffer_Size.
  *                 Otherwise returns CHIP_ERROR_BUFFER_TOO_SMALL. It will get resized to
  *                 actual size needed on success.
 

src/crypto/OperationalKeystore.h

@@ -67,7 +67,7 @@ class OperationalKeystore
      *  Only one pending operational keypair is supported at a time.
      *
      * @param fabricIndex - FabricIndex for which a new keypair must be made available
-     * @param outCertificateSigningRequest - Buffer to contain the CSR. Must be at least `kMIN_CSR_Buffer_Size` large.
+     * @param outCertificateSigningRequest - Buffer to contain the CSR. Must have size at least `kMIN_CSR_Buffer_Size`.
      *
      * @retval CHIP_NO_ERROR on success
      * @retval CHIP_ERROR_BUFFER_TOO_SMALL if `outCertificateSigningRequest` buffer is too small