clk: ti: gate: fix broken omap36xx_gate_clk_enable

omap36xx_gate_clk_enable_with_hsdiv_restore() was still using old
__raw_* calls to access registers, which are no longer supported.
Convert to use new regmap_* APIs.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
ARM: dts: omap3: update clock data

Some dpll flags were bugged.

Signed-off-by: Tero Kristo <t-kristo@ti.com>