Tegra: clocks: Add 38.4MHz OSC support for T210 use

Added 38.4MHz/48MHz entries to pll_x_table for CPU PLL. Needs
to be measured - should be close to 700MHz (1.4G/2).

Note that some freqs aren't in the PLLU table in T210 TRM
(13, 26MHz), so I used the 12MHz table entry for them. They
shouldn't be selected since they're not viable T210 OSC freqs.

Since there are now 2 new OSC defines, all tables (pll_x_table,
PLLU) had to increase by two entries, but since 38.4/48MHz are
not viable osc freqs on T20/30/114, etc, they're just set to 0.

Signed-off-by: Tom Warren <twarren@nvidia.com>

arch/arm/include/asm/arch-tegra/clock.h

@@ -16,6 +16,8 @@ enum clock_osc_freq {
 	CLOCK_OSC_FREQ_19_2,
 	CLOCK_OSC_FREQ_12_0,
 	CLOCK_OSC_FREQ_26_0,
+	CLOCK_OSC_FREQ_38_4,
+	CLOCK_OSC_FREQ_48_0,
 
 	CLOCK_OSC_FREQ_COUNT,
 };