package/openpowerlink: link demos applications with PCIe library interface

In commit f1bc98f396778c9fd8c884527787eb538212f398 the CFG_BUILD_KERNEL_STACK
option wasn't set when the PCIe library interface is selected.

The build fail since the default choice "Link to Application" (which require
libpcap) is used.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/openpowerlink/openpowerlink.mk

@@ -131,6 +131,9 @@ OPENPOWERLINK_CONF_OPTS += \
 else ifeq ($(BR2_PACKAGE_OPENPOWERLINK_STACK_KERNEL_STACK_LIB),y)
 OPENPOWERLINK_CONF_OPTS += \
 	-DCFG_BUILD_KERNEL_STACK="Linux Kernel Module"
+else ifeq ($(BR2_PACKAGE_OPENPOWERLINK_STACK_KERNEL_PCIE_STACK_LIB),y)
+OPENPOWERLINK_CONF_OPTS += \
+	-DCFG_BUILD_KERNEL_STACK="Kernel stack on PCIe card"
 endif
 
 ifeq ($(BR2_PACKAGE_OPENPOWERLINK_DEMO_MN_CONSOLE),y)