icu: bump to 75.1

Unicode® ICU 75 updates to CLDR 45 (beta blog) locale data with new locales and various additions and corrections. C++ code now requires C++17 and is being made more robust.
The CLDR MessageFormat 2.0 specification is now in technology preview, together with a corresponding update of the ICU4J (Java) tech preview and a new ICU4C (C++) tech preview.

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

libs/icu/Makefile

@@ -8,14 +8,14 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=icu4c
-MAJOR_VERSION:=74
-MINOR_VERSION:=2
+MAJOR_VERSION:=75
+MINOR_VERSION:=1
 PKG_VERSION:=$(MAJOR_VERSION).$(MINOR_VERSION)
 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:=5e4fb11d6a3e6b85afb55de8da8a71538f1d8fd64fce893986b37d60e5bb0091
+PKG_HASH:=cb968df3e4d2e87e8b11c49a5d01c787bd13b9545280fc6642f826527618caef
 
 PKG_LICENSE:=ICU
 PKG_LICENSE_FILES:=LICENSE

libs/icu/patches/001-change_optimization_option.patch

@@ -1,6 +1,6 @@
 --- a/runConfigureICU
 +++ b/runConfigureICU
-@@ -254,8 +254,8 @@ case $platform in
+@@ -255,8 +255,8 @@ case $platform in
          THE_COMP="the GNU C++"
          CC=gcc; export CC
          CXX=g++; export CXX