change(MD5Builder): Const-correctness

Propagate 'const' of buffer variable from underlying esp_rom_md5_update() to MD5Builder::add().

Author:    Stefan Oberhumer <[email protected]>

Author: StefanOberhumer

Diff for: cores/esp32/MD5Builder.cpp

@@ -27,7 +27,7 @@ void MD5Builder::begin(void)
     esp_rom_md5_init(&_ctx);
 }
 
-void MD5Builder::add(uint8_t * data, size_t len)
+void MD5Builder::add(const uint8_t * data, size_t len)
 {
     esp_rom_md5_update(&_ctx, data, len);
 }

Diff for: cores/esp32/MD5Builder.h

@@ -38,7 +38,7 @@ class MD5Builder : public HashBuilder
     void begin(void) override;
 
     using HashBuilder::add;
-    void add(uint8_t * data, size_t len) override;
+    void add(const uint8_t * data, size_t len) override;
 
     using HashBuilder::addHexString;
     void addHexString(const char * data) override;