kconfiglib.py: Kludge in 'imply' support

Currently upstream does not yet understand the imply keyword.  For what
we use kconfiglib.py for today, this is OK.  We only need to be able to
evaluate in order to make boards.cfg and none of those choices will
depend on how imply evaluates out.
Signed-off-by: NTom Rini <trini@konsulko.com>

tools/buildman/kconfiglib.py

@@ -892,7 +892,7 @@ class Config(object):
 
                 line_feeder.unget()
 
-            elif t0 == T_SELECT:
+            elif t0 == T_SELECT or t0 == T_IMPLY:
                 target = tokens.get_next()
 
                 stmt.referenced_syms.add(target)
@@ -3406,8 +3406,8 @@ def _internal_error(msg):
  T_OPTIONAL, T_PROMPT, T_DEFAULT,
  T_BOOL, T_TRISTATE, T_HEX, T_INT, T_STRING,
  T_DEF_BOOL, T_DEF_TRISTATE,
- T_SELECT, T_RANGE, T_OPTION, T_ALLNOCONFIG_Y, T_ENV,
- T_DEFCONFIG_LIST, T_MODULES, T_VISIBLE) = range(39)
+ T_SELECT, T_IMPLY, T_RANGE, T_OPTION, T_ALLNOCONFIG_Y, T_ENV,
+ T_DEFCONFIG_LIST, T_MODULES, T_VISIBLE) = range(40)
 
 # The leading underscore before the function assignments below prevent pydoc
 # from listing them. The constants could be hidden too, but they're fairly
@@ -3424,8 +3424,9 @@ _get_keyword = \
    "prompt": T_PROMPT, "default": T_DEFAULT, "bool": T_BOOL, "boolean": T_BOOL,
    "tristate": T_TRISTATE, "int": T_INT, "hex": T_HEX, "def_bool": T_DEF_BOOL,
    "def_tristate": T_DEF_TRISTATE, "string": T_STRING, "select": T_SELECT,
-   "range": T_RANGE, "option": T_OPTION, "allnoconfig_y": T_ALLNOCONFIG_Y,
-   "env": T_ENV, "defconfig_list": T_DEFCONFIG_LIST, "modules": T_MODULES,
+   "imply": T_IMPLY, "range": T_RANGE, "option": T_OPTION,
+   "allnoconfig_y": T_ALLNOCONFIG_Y, "env": T_ENV,
+   "defconfig_list": T_DEFCONFIG_LIST, "modules": T_MODULES,
    "visible": T_VISIBLE}.get
 
 # Strings to use for True and False