soc/qualcomm/common/gpio: Define a macro for the gpio offset

Defining a macro for the gpio offset instead of a constant value.

BUG=b:182963902
TEST=Validated on qualcomm sc7280 development board

Signed-off-by: Taniya Das <tdas@codeaurora.org>
Change-Id: Iefdde8f8331cf1df2e88a2c8915aefb4fa091d65
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55948
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shelley Chen <shchen@google.com>

src/soc/qualcomm/common/include/soc/gpio_common.h

@@ -7,6 +7,7 @@
 #include <soc/addressmap.h>
 
 #define GPIO_FUNC_GPIO	0
+#define TLMM_GPIO_OFF_DELTA	0x1000
 
 /* GPIO TLMM INTR: Mask */
 enum gpio_tlmm_intr_bmsk {