Update IDF to a0468b2 (#2108)

* Update IDF to a0468b2

* add missing ld file

* Fix PIO builds and change coex policy

tools/sdk/include/libsodium/sodium/crypto_secretbox_xsalsa20poly1305.h

@@ -0,0 +1,58 @@
+#ifndef crypto_secretbox_xsalsa20poly1305_H
+#define crypto_secretbox_xsalsa20poly1305_H
+
+#include <stddef.h>
+#include "export.h"
+
+#ifdef __cplusplus
+# ifdef __GNUC__
+#  pragma GCC diagnostic ignored "-Wlong-long"
+# endif
+extern "C" {
+#endif
+
+#define crypto_secretbox_xsalsa20poly1305_KEYBYTES 32U
+SODIUM_EXPORT
+size_t crypto_secretbox_xsalsa20poly1305_keybytes(void);
+
+#define crypto_secretbox_xsalsa20poly1305_NONCEBYTES 24U
+SODIUM_EXPORT
+size_t crypto_secretbox_xsalsa20poly1305_noncebytes(void);
+
+#define crypto_secretbox_xsalsa20poly1305_MACBYTES 16U
+SODIUM_EXPORT
+size_t crypto_secretbox_xsalsa20poly1305_macbytes(void);
+
+#define crypto_secretbox_xsalsa20poly1305_BOXZEROBYTES 16U
+SODIUM_EXPORT
+size_t crypto_secretbox_xsalsa20poly1305_boxzerobytes(void);
+
+#define crypto_secretbox_xsalsa20poly1305_ZEROBYTES \
+    (crypto_secretbox_xsalsa20poly1305_BOXZEROBYTES + \
+     crypto_secretbox_xsalsa20poly1305_MACBYTES)
+SODIUM_EXPORT
+size_t crypto_secretbox_xsalsa20poly1305_zerobytes(void);
+
+SODIUM_EXPORT
+int crypto_secretbox_xsalsa20poly1305(unsigned char *c,
+                                      const unsigned char *m,
+                                      unsigned long long mlen,
+                                      const unsigned char *n,
+                                      const unsigned char *k);
+
+SODIUM_EXPORT
+int crypto_secretbox_xsalsa20poly1305_open(unsigned char *m,
+                                           const unsigned char *c,
+                                           unsigned long long clen,
+                                           const unsigned char *n,
+                                           const unsigned char *k)
+            __attribute__ ((warn_unused_result));
+
+SODIUM_EXPORT
+void crypto_secretbox_xsalsa20poly1305_keygen(unsigned char k[crypto_secretbox_xsalsa20poly1305_KEYBYTES]);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif