crypto: x86 - Rename functions to avoid conflict with crypto/sha256.h

Rename static / file-local functions so that they do not conflict with
the functions declared in crypto/sha256.h.

This is a preparation patch for folding crypto/sha256.h into crypto/sha.h.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

arch/x86/crypto/sha256_ssse3_glue.c

@@ -45,8 +45,8 @@ asmlinkage void sha256_transform_ssse3(u32 *digest, const char *data,
 				       u64 rounds);
 typedef void (sha256_transform_fn)(u32 *digest, const char *data, u64 rounds);
 
-static int sha256_update(struct shash_desc *desc, const u8 *data,
-			 unsigned int len, sha256_transform_fn *sha256_xform)
+static int _sha256_update(struct shash_desc *desc, const u8 *data,
+			  unsigned int len, sha256_transform_fn *sha256_xform)
 {
 	struct sha256_state *sctx = shash_desc_ctx(desc);
 
@@ -84,7 +84,7 @@ static int sha256_finup(struct shash_desc *desc, const u8 *data,
 static int sha256_ssse3_update(struct shash_desc *desc, const u8 *data,
 			 unsigned int len)
 {
-	return sha256_update(desc, data, len, sha256_transform_ssse3);
+	return _sha256_update(desc, data, len, sha256_transform_ssse3);
 }
 
 static int sha256_ssse3_finup(struct shash_desc *desc, const u8 *data,
@@ -151,7 +151,7 @@ asmlinkage void sha256_transform_avx(u32 *digest, const char *data,
 static int sha256_avx_update(struct shash_desc *desc, const u8 *data,
 			 unsigned int len)
 {
-	return sha256_update(desc, data, len, sha256_transform_avx);
+	return _sha256_update(desc, data, len, sha256_transform_avx);
 }
 
 static int sha256_avx_finup(struct shash_desc *desc, const u8 *data,
@@ -233,7 +233,7 @@ asmlinkage void sha256_transform_rorx(u32 *digest, const char *data,
 static int sha256_avx2_update(struct shash_desc *desc, const u8 *data,
 			 unsigned int len)
 {
-	return sha256_update(desc, data, len, sha256_transform_rorx);
+	return _sha256_update(desc, data, len, sha256_transform_rorx);
 }
 
 static int sha256_avx2_finup(struct shash_desc *desc, const u8 *data,
@@ -313,7 +313,7 @@ asmlinkage void sha256_ni_transform(u32 *digest, const char *data,
 static int sha256_ni_update(struct shash_desc *desc, const u8 *data,
 			 unsigned int len)
 {
-	return sha256_update(desc, data, len, sha256_ni_transform);
+	return _sha256_update(desc, data, len, sha256_ni_transform);
 }
 
 static int sha256_ni_finup(struct shash_desc *desc, const u8 *data,