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_stream_aes128ctr.h

@@ -0,0 +1,65 @@
+#ifndef crypto_stream_aes128ctr_H
+#define crypto_stream_aes128ctr_H
+
+/*
+ *  WARNING: This is just a stream cipher. It is NOT authenticated encryption.
+ *  While it provides some protection against eavesdropping, it does NOT
+ *  provide any security against active attacks.
+ *  Unless you know what you're doing, what you are looking for is probably
+ *  the crypto_box functions.
+ */
+
+#include <stddef.h>
+#include "export.h"
+
+#ifdef __cplusplus
+# ifdef __GNUC__
+#  pragma GCC diagnostic ignored "-Wlong-long"
+# endif
+extern "C" {
+#endif
+
+#define crypto_stream_aes128ctr_KEYBYTES 16U
+SODIUM_EXPORT
+size_t crypto_stream_aes128ctr_keybytes(void);
+
+#define crypto_stream_aes128ctr_NONCEBYTES 16U
+SODIUM_EXPORT
+size_t crypto_stream_aes128ctr_noncebytes(void);
+
+#define crypto_stream_aes128ctr_BEFORENMBYTES 1408U
+SODIUM_EXPORT
+size_t crypto_stream_aes128ctr_beforenmbytes(void);
+
+SODIUM_EXPORT
+int crypto_stream_aes128ctr(unsigned char *out, unsigned long long outlen,
+                            const unsigned char *n, const unsigned char *k)
+            __attribute__ ((deprecated));
+
+SODIUM_EXPORT
+int crypto_stream_aes128ctr_xor(unsigned char *out, const unsigned char *in,
+                                unsigned long long inlen, const unsigned char *n,
+                                const unsigned char *k)
+            __attribute__ ((deprecated));
+
+SODIUM_EXPORT
+int crypto_stream_aes128ctr_beforenm(unsigned char *c, const unsigned char *k)
+            __attribute__ ((deprecated));
+
+SODIUM_EXPORT
+int crypto_stream_aes128ctr_afternm(unsigned char *out, unsigned long long len,
+                                    const unsigned char *nonce, const unsigned char *c)
+            __attribute__ ((deprecated));
+
+SODIUM_EXPORT
+int crypto_stream_aes128ctr_xor_afternm(unsigned char *out, const unsigned char *in,
+                                        unsigned long long len,
+                                        const unsigned char *nonce,
+                                        const unsigned char *c)
+            __attribute__ ((deprecated));
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif