gcc43: rename and rebuild

This updates the build to use the common gcc build
infrastructure.
Additionally the package is renamed from gcc436 to gcc43
to match tgcwarev2.

gcc43/meta/relnotes

@@ -0,0 +1,30 @@
+PACKAGE DETAILS
+---------------
+Name:	    %%PKGNAME%%
+Version:    %%SOURCE_AND_VER%%
+Vendor:	    %%VENDOR%%
+Packager:   %%PKGEDBY%%
+
+Source (sha1sum):
+%%SOURCE_SHA1SUM%%
+
+BUILD DETAILS
+-------------
+Compiler:
+%%COMPILER%%
+
+Environment:
+%%ENVIRONMENT%%
+
+Configure:
+%%CONFIGURE%%
+
+KNOWN DEPENDENCIES
+------------------
+%%DEPENDENCIES%%
+
+ERRORS/MISCELLANEOUS
+--------------------
+After installation the fixed-includes should be regenerated.
+Go to /usr/tgcware/libexec/gcc/<platform>/<version>/install-tools and run
+the mkheaders program.