grunt: Default SPK_PA_EN to LOW

We need to default this to low so the speakers don't activate in S3.

BUG=b:118248953
TEST=Used a scope to look at the line and made sure depthcharge still
beeps.

Change-Id: I70d2f4a3261d212b62e784fa7414e45b1d575612
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-on: https://review.coreboot.org/c/29783
Reviewed-by: Daniel Kurtz <djkurtz@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/kahlee/variants/baseboard/gpio.c

@@ -209,7 +209,7 @@ static const struct soc_amd_gpio gpio_set_stage_ram[] = {
 	PAD_NF(GPIO_118, SPI_CS1_L, PULL_NONE),
 
 	/* GPIO_119 - SPK_PA_EN */
-	PAD_GPO(GPIO_119, HIGH),
+	PAD_GPO(GPIO_119, LOW),
 
 	/* GPIO_126 - DMIC_CLK2_EN */
 	PAD_GPO(GPIO_126, HIGH),