arm: omap3: clockdomain data: Remove superfluous commas from gfx_sgx_3xxx_wkdeps[]

Clean up clockdomains3xxx_data.c a bit by removing the superfluous
commas in gfx_sgx_3xxx_wkdeps[].

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>