loongarch: hostreq: Bump Binutils and GCC requirement

Binutils 2.38 is the first release supporting LoongArch.  Maybe we
should make it 2.40 (when the stupid "stack-based relocs" are gone) but
with our cross-compile method it should not make a significant
difference.

GCC 12.1 is the first release supporting LoongArch but it suffers a
severe bug [1] and it may miscompile GCC pass 1, so require 12.2 here.

[1]:https://gcc.gnu.org/PR106096

chapter02/hostreqs.xml

@@ -44,7 +44,7 @@
     </listitem>
 
     <listitem>
-      <para><emphasis role="strong">Binutils-2.13.1</emphasis> (Versions
+      <para><emphasis role="strong">Binutils-2.38</emphasis> (Versions
       greater than &binutils-version; are not recommended as they have
       not been tested)</para>
     </listitem>
@@ -72,7 +72,7 @@
     </listitem>
 
     <listitem>
-      <para><emphasis role="strong">GCC-5.1</emphasis> including the C++
+      <para><emphasis role="strong">GCC-12.2</emphasis> including the C++
       compiler, <command>g++</command> (Versions greater than &gcc-version; are
       not recommended as they have not been tested). C and C++ standard
       libraries (with headers) must also be present so the C++ compiler can
@@ -230,13 +230,13 @@ ver_kernel()
 # Coreutils first because-sort needs Coreutils >= 7.0
 ver_check Coreutils      sort     7.0 || bail "--version-sort unsupported"
 ver_check Bash           bash     3.2
-ver_check Binutils       ld       2.13.1
+ver_check Binutils       ld       2.38
 ver_check Bison          bison    2.7
 ver_check Diffutils      diff     2.8.1
 ver_check Findutils      find     4.2.31
 ver_check Gawk           gawk     4.0.1
-ver_check GCC            gcc      5.1
-ver_check "GCC (C++)"    g++      5.1
+ver_check GCC            gcc      12.2
+ver_check "GCC (C++)"    g++      12.2
 ver_check Grep           grep     2.5.1a
 ver_check Gzip           gzip     1.3.12
 ver_check M4             m4       1.4.10