Move tcc 0.9.27 after bzip2.

This also allows to merge two builds of tcc 0.9.27.
Drop tcc 0.9.27 git submodule.

sysa/tcc-0.9.27/patches-mes-libc/crt1.patch

@@ -0,0 +1,27 @@
+SPDX-FileCopyrightText: 2021 Paul Dersey <pdersey@gmail.com>
+
+SPDX-License-Identifier: LGPL-2.0-or-later
+
+Fix issue in mes-libc crt where argc was getting truncated to lower byte and
+prevented programs with more than 255 arguments from working correctly. 
+
+--- lib/linux/x86-mes-gcc/crt1.c
++++ lib/linux/x86-mes-gcc/crt1.c
+@@ -48,7 +48,7 @@ _start ()
+   asm (
+        "mov     %%ebp,%%eax\n\t"
+        "add     $4,%%eax\n\t"
+-       "movzbl  (%%eax),%%eax\n\t"
++       "mov     (%%eax),%%eax\n\t"
+        "add     $3,%%eax\n\t"
+        "shl     $2,%%eax\n\t"
+        "add     %%ebp,%%eax\n\t"
+@@ -64,7 +64,7 @@ _start ()
+ 
+        "mov     %ebp,%eax\n\t"
+        "add     $4,%eax\n\t"
+-       "movzbl  (%eax),%eax\n\t"
++       "mov     (%eax),%eax\n\t"
+        "push    %eax\n\t"
+ 
+        "call    main\n\t"

sysa/tcc-0.9.27/patches-mes-libc/qsort.patch

@@ -0,0 +1,28 @@
+SPDX-FileCopyrightText: 2021 Paul Dersey <pdersey@gmail.com>
+
+SPDX-License-Identifier: LGPL-2.0-or-later
+
+Reimplement qswap in a more correct manner that works much more cleanly and
+with larger string sizes.
+
+--- lib/stdlib/qsort.c
++++ lib/stdlib/qsort.c
+@@ -24,10 +25,14 @@
+ void
+ qswap (void *a, void *b, size_t size)
+ {
+-  char *buf[8];
+-  memcpy (buf, a, size);
+-  memcpy (a, b, size);
+-  memcpy (b, buf, size);
++  char *pa = a;
++  char *pb = b;
++  do
++  {
++    char tmp = *pa;
++    *pa++ = *pb;
++    *pb++ = tmp;
++  } while (--size > 0);
+ }
+ 
+ size_t