spec/bsps/aarch64/zynqmp: Remove overly specific BSP and rename generic BSP

Updates #5119

spec/build/bsps/aarch64/xilinx-zynqmp/bspapu.yml

@@ -1,6 +1,6 @@
 SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
 arch: aarch64
-bsp: zynqmp_a53
+bsp: zynqmp_apu
 build-type: bsp
 cflags: []
 copyrights:

spec/build/bsps/aarch64/xilinx-zynqmp/bspapuilp32.yml

@@ -1,6 +1,6 @@
 SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
 arch: aarch64
-bsp: zynqmp_zu3eg_ilp32
+bsp: zynqmp_apu_ilp32
 build-type: bsp
 cflags: []
 copyrights:

spec/build/bsps/aarch64/xilinx-zynqmp/bspzu3eg.yml

@@ -1,23 +0,0 @@
-SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
-arch: aarch64
-bsp: zynqmp_zu3eg
-build-type: bsp
-cflags: []
-copyrights:
-- Copyright (C) 2020 On-Line Applications Research (OAR)
-cppflags: []
-enabled-by: true
-family: xilinx-zynqmp
-includes: []
-install: []
-links:
-- role: build-dependency
-  uid: grp_hardware
-- role: build-dependency
-  uid: linkcmds_lp64
-- role: build-dependency
-  uid: objfdtzynqmp
-source:
-- bsps/aarch64/xilinx-zynqmp/start/bspstartecc_hw.c
-- bsps/aarch64/xilinx-zynqmp/start/bspstartecc_zu3eg.c
-type: build