icu: bump to 73.1

Description:
It updates to CLDR 43 locale data with various additions and corrections.
ICU 73 improves Japanese and Korean short-text line breaking, reduces C++ memory use in date formatting, and promotes the Java person name formatter from tech preview to draft.
ICU 73 and CLDR 43 are minor releases, mostly focused on bug fixes and small enhancements. (The fall CLDR/ICU releases will update to Unicode 15.1 which is planned for September.)
ICU 73 updates to the time zone data version 2023c (2023-mar). Note that pre-1970 data for a number of time zones has been removed, as has been the case in the upstream tzdata release since 2021b.

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

libs/icu/Makefile

@@ -8,14 +8,14 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=icu4c
-MAJOR_VERSION:=72
+MAJOR_VERSION:=73
 MINOR_VERSION:=1
 PKG_VERSION:=$(MAJOR_VERSION).$(MINOR_VERSION)
-PKG_RELEASE:=2
+PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(MAJOR_VERSION)_$(MINOR_VERSION)-src.tgz
 PKG_SOURCE_URL:=https://github.com/unicode-org/icu/releases/download/release-$(MAJOR_VERSION)-$(MINOR_VERSION)
-PKG_HASH:=a2d2d38217092a7ed56635e34467f92f976b370e20182ad325edea6681a71d68
+PKG_HASH:=a457431de164b4aa7eca00ed134d00dfbf88a77c6986a10ae7774fc076bb8c45
 
 PKG_LICENSE:=ICU
 PKG_LICENSE_FILES:=LICENSE
@@ -25,6 +25,7 @@ PKG_MAINTAINER:=Hirokazu MORIKAWA <morikw2@gmail.com>
 
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
+HOST_BUILD_PARALLEL:=1
 
 PKG_BUILD_DEPENDS:=icu/host
 HOST_BUILD_DEPENDS:=python3/host
@@ -104,7 +105,7 @@ HOST_CONFIGURE_VARS:=
 ifeq ($(HOST_OS),Darwin)
 HOST_CONFIGURE_ARGS:= MacOSX
 else
-HOST_CONFIGURE_ARGS:= Linux/gcc 
+HOST_CONFIGURE_ARGS:= Linux/gcc
 endif
 HOST_CONFIGURE_ARGS+= \
 	--disable-debug \

libs/icu/patches/010-max_align_t.patch

@@ -29,7 +29,7 @@
          *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
 --- a/common/utext.cpp
 +++ b/common/utext.cpp
-@@ -569,7 +569,7 @@ enum {
+@@ -572,7 +572,7 @@ enum {
  
  struct ExtendedUText {
      UText               ut;
@@ -38,7 +38,7 @@
  };
  
  static const UText emptyText = UTEXT_INITIALIZER;
-@@ -584,7 +584,7 @@ utext_setup(UText *ut, int32_t extraSpac
+@@ -587,7 +587,7 @@ utext_setup(UText *ut, int32_t extraSpac
          // We need to heap-allocate storage for the new UText
          int32_t spaceRequired = sizeof(UText);
          if (extraSpace > 0) {
@@ -46,7 +46,7 @@
 +            spaceRequired = sizeof(ExtendedUText) + extraSpace - sizeof(max_align_t);
          }
          ut = (UText *)uprv_malloc(spaceRequired);
-         if (ut == NULL) {
+         if (ut == nullptr) {
 --- a/tools/toolutil/toolutil.cpp
 +++ b/tools/toolutil/toolutil.cpp
 @@ -267,7 +267,7 @@ struct UToolMemory {