linux-imx

ARM: shmobile: r8a7778: r8a7778_register_hspi() become static

r8a7778_register_hspi() used only from setup-r8a7778.c
it can be static

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>