In Tiger Lake we have support for enabling MIPI clocks at runtime in
ACPI. Hence remove setting pch_islclk from devcietree and chip.h.
Also update functions which reference pch_isclk.
BUG=b:148884060
Branch=None
Test=build and boot volteer and verify camera functionality
Signed-off-by: Srinidhi N Kaushik <srinidhi.n.kaushik@intel.com>
Change-Id: I6b3399172c43b4afa4267873ddd8ccf8d417ca16
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41570
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>