Sync ODBC version

When passing `--without-odbcver` or `--with-odbcver=no` to configure,
the ODBC version has been designed to be highest supported version
(0x0350). This syncs the behavior with the Windows build system.

Additionally, the 5th argument "no" of PHP_ARG_WITH fixes the behavior
when building shared odbc extension and makes it a bit less error prone
when moving the code around.

Author: petk

ext/odbc/config.m4

@@ -96,7 +96,7 @@ PHP_ARG_WITH([odbcver],,
     [Force support for the passed ODBC version. A hex number is expected,
     default 0x0350. Use the special value of 0 to prevent an explicit ODBCVER to
     be defined.])],
-  [0x0350])
+  [0x0350],[no])
 
 if test -z "$ODBC_TYPE"; then
 PHP_ARG_WITH([adabas],,
@@ -439,7 +439,7 @@ if test "no" != "$PHP_ODBCVER"; then
     AC_DEFINE_UNQUOTED(ODBCVER, $PHP_ODBCVER, [ The highest supported ODBC version ])
   fi
 else
-  AC_DEFINE(ODBCVER, 0x0300, [ The highest supported ODBC version ])
+  AC_DEFINE(ODBCVER, 0x0350, [ The highest supported ODBC version ])
 fi
 
 dnl Extension setup