acpigen_ps2_keybd: map insert

This is going to be used in some devices in place of KEY_ASSISTANT, map
it.

BUG=b:446676921
TEST=flashed and tested on a brox board, checked that the correct code
is generated with evtest

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
Change-Id: I006c232c2924e8b6dc06338b0282c76f1f529a9e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90026
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Caveh Jalali <caveh@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/acpi/acpigen_ps2_keybd.c

@@ -177,6 +177,8 @@ static uint32_t rest_of_keymaps[] = {
 	KEYMAP(0xde, KEY_POWER),
 	/* Caps Lock */
 	KEYMAP(0x3a, KEY_CAPSLOCK),
+	/* Insert Key */
+	KEYMAP(0xd2, KEY_INSERT),
 };
 
 static void ssdt_generate_physmap(struct acpi_dp *dp, uint8_t num_top_row_keys,