mb/google/bluey: Add support to invoke LPASS Init

Add support in mainboard to invoke LPASS Initialization.

Test=1. Create an image.serial.bin and ensure it boots on X1P42100.
2. Verified LP0 BCM vote using serial logs.
Serial Log:
[DEBUG]  BCM: Found address 0x00050048 for resource LP0
[INFO ]  BCM: Successfully voted for LP0 (addr=0x00050048, val=0x60004001)
3. Verified if the clocks are enabled by taking clock dump. Clock
enablement is verified by dumping the 31st bit of the corresponding
clock’s CBCR register. A value of 0 in bit 31 indicates that the clock
is ON. The register details are part of HRD-X1P42100-S1 document.
https://docs.qualcomm.com/bundle/resource/topics/HRD-X1P42100-S1/

Change-Id: Icdcb8176639d4c6d24ab6cd2741d7e44e2370eb0
Signed-off-by: Swathi Tamilselvan <tswathi@qualcomm.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90852
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>

src/mainboard/google/bluey/mainboard.c

@@ -203,6 +203,8 @@ static void mainboard_init(struct device *dev)
 	setup_usb();
 
 	display_startup();
+
+	lpass_init();
 }
 
 static void mainboard_enable(struct device *dev)