config: boards: pocketbeagle2: Add current-rt branch

- Using RT kernel is a common thing on pocketbeagle 2. So add current-rt
  branch similar to what is being done for the base k3 family.

Signed-off-by: Ayush Singh <[email protected]>

Author: Ayush1325

config/boards/pocketbeagle2.conf

@@ -17,10 +17,7 @@ SRC_CMDLINE="root=/dev/mmcblk1p2 rootwait console=ttyS2,115200n8 console=ttyGS0,
 BOOT_FDT_FILE="ti/k3-am6232-pocketbeagle2.dtb"
 OPTEE_PLATFORM="k3-am62x"
 
-#Until PB2 goes upstream, use this branch
-function post_family_config_branch_current__pocketbeagle2_use_beagle_kernel_uboot() {
-	display_alert "$BOARD" " beagleboard (current branch) u-boot and kernel overrides for $BOARD / $BRANCH" "info"
-
+function current_beagle_kernel_uboot() {
 	declare -g KERNELSOURCE="https://github.com/beagleboard/linux" # BeagleBoard kernel
 	declare -g KERNEL_MAJOR_MINOR="6.12"
 	declare -g KERNELBRANCH="branch:v6.12.24-ti-arm64-r43"
@@ -30,6 +27,17 @@ function post_family_config_branch_current__pocketbeagle2_use_beagle_kernel_uboo
 	declare -g BOOTBRANCH="branch:v2025.07-am6232-pocketbeagle2"
 }
 
+#Until PB2 goes upstream, use this branch
+function post_family_config_branch_current__pocketbeagle2_use_beagle_kernel_uboot() {
+	display_alert "$BOARD" " beagleboard (current branch) u-boot and kernel overrides for $BOARD / $BRANCH" "info"
+	current_beagle_kernel_uboot
+}
+
+function post_family_config_branch_current-rt__pocketbeagle2_use_beagle_kernel_uboot() {
+	display_alert "$BOARD" " beagleboard (current-rt branch) u-boot and kernel overrides for $BOARD / $BRANCH" "info"
+	current_beagle_kernel_uboot
+}
+
 #Until PB2 goes upstream, use this branch
 function post_family_config_branch_edge__pocketbeagle2_use_beagle_kernel_uboot() {
 	display_alert "$BOARD" " beagleboard (next branch) u-boot and kernel overrides for $BOARD / $BRANCH" "info"