misc: pci_endpoint_test: Fix to support > 10 pci-endpoint-test devices
Adding more than 10 pci-endpoint-test devices results in
"kobject_add_internal failed for pci-endpoint-test.1 with -EEXIST, don't
try to register things with the same name in the same directory". This
is because the length of the "name" is limited to 20 characters. Change
the length of the name to 24 in order to support upto 10000
pci-endpoint-test devices.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>