mb/google/nautilus: Correct LINK FREQ of imx258 sensor

Per vendor datasheet, corrected linkfreq of imx258 as
{633600000, 320000000}

BUG=None
BRANCH=None
TEST=Verified the MIPI and USB camera function on DUT board

Change-Id: Ie5beed44c15e26b9f82cb305a91b8ff90a9ea867
Signed-off-by: Andy Yeh <andy.yeh@intel.com>
Reviewed-on: https://review.coreboot.org/24990
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

src/mainboard/google/poppy/variants/nautilus/include/variant/acpi/cam0.asl

@@ -74,7 +74,7 @@ Scope (\_SB.PCI0.I2C2)
 					Package () { 1, 2, 3, 4 }
 				},
 				Package () { "link-frequencies",
-					Package() { 540000000, 270000000 }
+					Package() { 633600000, 320000000 }
 				},
 				Package () { "remote-endpoint",
 					Package() { \_SB.PCI0.CIO2, 0, 0 }