[media] staging: media: davinci_vpfe: fix W=1 build warnings

When building with "make W=1", we get multiple harmless build warnings
for the vpfe driver:

drivers/staging/media/davinci_vpfe/dm365_resizer.c:241:1: error: 'static' is not at beginning of declaration [-Werror=old-style-declaration]
drivers/staging/media/davinci_vpfe/dm365_resizer.c: In function 'resizer_set_defualt_configuration':
drivers/staging/media/davinci_vpfe/dm365_resizer.c:831:16: error: initialized field overwritten [-Werror=override-init]
drivers/staging/media/davinci_vpfe/dm365_resizer.c:831:16: note: (near initialization for 'rsz_default_config.rsz_rsc_param[0].h_typ_c')
drivers/staging/media/davinci_vpfe/dm365_resizer.c:849:16: error: initialized field overwritten [-Werror=override-init]
drivers/staging/media/davinci_vpfe/dm365_resizer.c:849:16: note: (near initialization for 'rsz_default_config.rsz_rsc_param[1].h_typ_c')

All of them are trivial to fix without changing the behavior of the
driver, as "static const" is interpreted the same as "const static",
and VPFE_RSZ_INTP_CUBIC is defined as zero, so the initializations
are not really needed.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>