soc/intel/jasperlake: Update camera_clock_ctl.asl to ASL2.0 syntax

This change updates camera_clock_ctl.asl to use ASL2.0 syntax. This
increases the readability of the ASL code.

TEST=Verified using --timeless option to abuild that the resulting
coreboot.rom is same as without the ASL2.0 syntax changes for wdoo.

Change-Id: I76ec29210ecdde728ce55531d2b6657be87ce9da
Signed-off-by: V Sowmya <v.sowmya@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41954
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>

src/soc/intel/jasperlake/acpi/camera_clock_ctl.asl

@@ -11,7 +11,7 @@ Scope (\_SB.PCI0) {
 
 	/* IsCLK PCH base register for clock settings */
 	Name (ICKB, 0)
-	Store (PCRB (PID_ISCLK) + R_ICLK_PCR_CAMERA1, ICKB)
+	ICKB = PCRB (PID_ISCLK) + R_ICLK_PCR_CAMERA1
 
 	/*
 	 * Arg0 : Clock Number