soc/intel/jasperlake: Add offsets for pad locking

This commit simply adds the offset for the PADCFGLOCK register for the
Intel Jasper Lake platform.  This enables pads to be locked.

BUG=b:191189275
BRANCH=None
TEST=Enable pad locking on lalala by calling `gpio_lock_pad` and verify
that the pad configuration is locked and cannot be manipulated from the
OS.

Signed-off-by: Aseda Aboagye <aaboagye@google.com>
Change-Id: Iccfe536b4a881f081f22bcc258a375caad3ffcb3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55648
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/jasperlake/gpio.c

@@ -70,6 +70,7 @@ static const struct pad_community jsl_communities[TOTAL_GPIO_COMM] = {
 		.last_pad = GPIO_COM0_END,
 		.num_gpi_regs = NUM_GPIO_COM0_GPI_REGS,
 		.pad_cfg_base = PAD_CFG_BASE,
+		.pad_cfg_lock_offset = PAD_CFG_LOCK,
 		.host_own_reg_0 = HOSTSW_OWN_REG_0,
 		.gpi_int_sts_reg_0 = GPI_INT_STS_0,
 		.gpi_int_en_reg_0 = GPI_INT_EN_0,

src/soc/intel/jasperlake/include/soc/gpio_defs.h

@@ -255,5 +255,6 @@
 #define GPI_SMI_STS_0				0x180
 #define GPI_SMI_EN_0				0x1a0
 #define PAD_CFG_BASE				0x600
+#define PAD_CFG_LOCK				0x80
 
 #endif