meta-nuvoton: u-boot-nuvoton: add u-boot-nuvoton 2021.04 recipe

Add for supporting customer whose still need to use u-boot v2021.04.

Customer can add this line into their include file to build it.
`PREFERRED_VERSION_u-boot-nuvoton ?= "2021.04%"`

Update u-boot-nuvoton 2021.04 srcrev bump b0b0222d39...1501268746

Brian Ma (1):
      dts: fix nuvoton-npcm845-pincfg.dtsi typo

Jim Liu (1):
      configs: rename arbel defconfig

Parvathi Bhogaraju (2):
      Invalidate RX buffer cache before freeing the DMA descriptor.
      net: designware: Pass all multicast frames in designware driver

Stanley Chu (6):
      cmd: cp: Fix boundary check for spi flash programming
      configs: arbel_evb: Use ARM timer as system tick counter
      crypto: npcm_sha: Support SHA512
      hash: Allow for SHA512 hardware implementations
      configs: arbel: Enable SHA512 HW acceleration
      crypto: npcm_sha: Support SHA384

Signed-off-by: Tim Lee <timlee660101@gmail.com>
Change-Id: I1b16685b1def6ed0d6dbc0f1cd0d055166ae95f0
diff --git a/meta-nuvoton/recipes-bsp/u-boot/u-boot-common-nuvoton_2021.04.inc b/meta-nuvoton/recipes-bsp/u-boot/u-boot-common-nuvoton_2021.04.inc
new file mode 100644
index 0000000..07919f1
--- /dev/null
+++ b/meta-nuvoton/recipes-bsp/u-boot/u-boot-common-nuvoton_2021.04.inc
@@ -0,0 +1,14 @@
+HOMEPAGE = "https://github.com/Nuvoton-Israel/u-boot"
+SECTION = "bootloaders"
+DEPENDS += "flex-native bison-native"
+
+LICENSE = "GPL-2.0-or-later"
+LIC_FILES_CHKSUM = "file://Licenses/README;md5=5a7450c57ffe5ae63fd732446b988025"
+
+UBRANCH = "npcm-v2021.04"
+SRC_URI = "git://github.com/Nuvoton-Israel/u-boot.git;branch=${UBRANCH};protocol=https"
+SRCREV = "1501268746d3f0c538908ddb7a1b901864dbfcff"
+
+S = "${WORKDIR}/git"
+
+PV .= "+${UBRANCH}+"