l2: l2_patch_main should not be static
l2: l2_patch_main should not be static

Without understanding what is going on,
a pattern from l2_fwd.c is applied to l2_patch.c file.

Type: fix
Fixes: d770cfc96257f9bd9e0c96c8ebe50e4531dc1bc5
Ticket: VPP-1799

Change-Id: Ia97d448f9d1846549f57ea69044ae15fa39bb942
Signed-off-by: Vratko Polak <84c5f374c860783d46e9bccfb1dae3a5cc35d4f7@cisco.com>

FDio/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,vpp-dev/vpp,vpp-dev/vpp,chrisy/vpp,vpp-dev/vpp,FDio/vpp,vpp-dev/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,vpp-dev/vpp,vpp-dev/vpp,vpp-dev/vpp,FDio/vpp