ocmb-explorer-fw: Fix package LICENSE and more

Fix 'ocmb-explorer-fw-legal-info' and some cosmetic things.

And because the ocmb-explorer package is a binary-only firmware that
uses a very weird release format, we need to make some compromises of
styling.

Signed-off-by: Bill Hoffa <wghoffa@us.ibm.com>
diff --git a/openpower/package/openpower-pnor/openpower-pnor.mk b/openpower/package/openpower-pnor/openpower-pnor.mk
index 2601887..9b8f60a 100644
--- a/openpower/package/openpower-pnor/openpower-pnor.mk
+++ b/openpower/package/openpower-pnor/openpower-pnor.mk
@@ -118,6 +118,10 @@
     OCC_BIN_FILENAME=$(BR2_OCC_BIN_FILENAME)
 endif
 
+ifeq ($(BR2_PACKAGE_OCMB_EXPLORER_FW),y)
+    OCMB_EXPLORER_FW_URL=$(call qstrip,$(OCMB_EXPLORER_FW_SITE)/$(OCMB_EXPLORER_FW_SOURCE))
+endif
+
 DEVTREE_BLOB_FILENAME = ""
 ifeq ($(BR2_OPENPOWER_POWER10),y)
     DEVTREE_BLOB_FILENAME = $(DEVTREE_BIN_DIR)/$(BMC_POWER_TARGET_FILENAME)
@@ -155,7 +159,7 @@
             -binary_dir $(BINARIES_DIR) \
             -bootkernel_filename $(LINUX_IMAGE_NAME) \
 	    -ocmbfw_version $(OCMB_EXPLORER_FW_VERSION) \
-	    -ocmbfw_url $(BR2_OCMB_EXPLORER_FW_URL) \
+	    -ocmbfw_url $(OCMB_EXPLORER_FW_URL) \
 	    -ocmbfw_original_filename $(BINARIES_DIR)/$(BR2_OCMBFW_FILENAME) \
 	    -ocmbfw_binary_filename $(OPENPOWER_PNOR_SCRATCH_DIR)/$(BR2_OCMBFW_PROCESSED_FILENAME) \
             -pnor_layout $(@D)/"$(OPENPOWER_RELEASE)"Layouts/$(BR2_OPENPOWER_PNOR_XML_LAYOUT_FILENAME) \