ACPICA: Add _PLD panel positions

ACPICA commit 1d36b551fa6749e650da1dfd3e809146e6ac6a2e

The ACPI specification v6.3 defines the panel positions in chapter
6.1.8 "_PLD (Physical Location of Device)"

Link: https://github.com/acpica/acpica/commit/1d36b551
Signed-off-by: Fabian Wüthrich <[e-mail]>
Reviewed-by: Daniel Scally <[e-mail]>
Reviewed-by: Andy Shevchenko <[e-mail]>
Signed-off-by: Bob Moore <[e-mail]>
Signed-off-by: Erik Kaneda <[e-mail]>
Signed-off-by: Rafael J. Wysocki <[e-mail]>

include/acpi/acbuffer.h

···
 #define ACPI_PLD_GET_HORIZ_OFFSET(dword)        ACPI_GET_BITS (dword, 16, ACPI_16BIT_MASK)
 #define ACPI_PLD_SET_HORIZ_OFFSET(dword,value)  ACPI_SET_BITS (dword, 16, ACPI_16BIT_MASK, value)	/* Offset 128+16=144, Len 16 */
 
+/* Panel position defined in _PLD section of ACPI Specification 6.3 */
+
+#define ACPI_PLD_PANEL_TOP      0
+#define ACPI_PLD_PANEL_BOTTOM   1
+#define ACPI_PLD_PANEL_LEFT     2
+#define ACPI_PLD_PANEL_RIGHT    3
+#define ACPI_PLD_PANEL_FRONT    4
+#define ACPI_PLD_PANEL_BACK     5
+#define ACPI_PLD_PANEL_UNKNOWN  6
+
 #endif				/* ACBUFFER_H */