[PATCH v2] image_types_wic: fix expansion error

[Ed Bartosh <ed.bartosh@linux.intel.com>]

Variable WKS_SEARCH_PATH was not fully expanded when used directly
in this expression:
    WKS_FULL_PATH = "${@wks_search('${WKS_FILES}'.split(), '${WKS_SEARCH_PATH}') or ''}"

This caused expansion error: bb.data_smart.ExpansionError:
Failure expanding variable WKS_FULL_PATH, .... which triggered exception
SyntaxError: invalid syntax (WKS_FULL_PATH, line 1)

Calling d.getVar instead of directly referencing variables
should fix the issue.

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
---
 meta/classes/image_types_wic.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/classes/image_types_wic.bbclass b/meta/classes/image_types_wic.bbclass
index 43b2917..500c8c5 100644
--- a/meta/classes/image_types_wic.bbclass
+++ b/meta/classes/image_types_wic.bbclass
@@ -8,7 +8,7 @@ WICVARS ?= "\
 WKS_FILE ??= "${IMAGE_BASENAME}.${MACHINE}.wks"
 WKS_FILES ?= "${WKS_FILE} ${IMAGE_BASENAME}.wks"
 WKS_SEARCH_PATH ?= "${THISDIR}:${@':'.join('%s/wic' % p for p in '${BBPATH}'.split(':'))}:${@':'.join('%s/scripts/lib/wic/canned-wks' % l for l in '${BBPATH}:${COREBASE}'.split(':'))}"
-WKS_FULL_PATH = "${@wks_search('${WKS_FILES}'.split(), '${WKS_SEARCH_PATH}') or ''}"
+WKS_FULL_PATH = "${@wks_search(d.getVar('WKS_FILES').split(), d.getVar('WKS_SEARCH_PATH')) or ''}"
 
 def wks_search(files, search_path):
     for f in files:
-- 
2.1.4