devel/android-tools-simpleperf: lock llvm-version at 9

LLVM_DEFAULT will be bumped to 15, this port fails with:
	[...]
	/usr/local/llvm15/include/llvm/ADT/STLForwardCompat.h:74:21:
	error: no template named 'remove_cv_t' i n namespace 'std'; did
	you mean 'remove_cv'?
	  using type = std::remove_cv_t<std::remove_reference_t<T>>;
		       ~~~~~^~~~~~~~~~~
			    remove_cv
	[...]

PR:		263456

devel/android-tools-simpleperf/Makefile

@@ -10,19 +10,17 @@ WWW=		https://developer.android.com/ndk/guides/simpleperf
 
 LICENSE=	APACHE20
 
-BUILD_DEPENDS=	llvm-config${LLVM_DEFAULT}:devel/llvm${LLVM_DEFAULT}
-
 USE_GITHUB=	yes
 GH_TUPLE=	jbeich:platform_system_extras:${DISTVERSIONFULL} \
 		aosp-mirror:platform_system_core:${DISTVERSIONFULL}:core \
 		aosp-mirror:platform_bionic:${DISTVERSIONFULL}:bionic/bionic
 
-USES=		compiler:c++11-lib ncurses uidfix
+USES=		compiler:c++11-lib llvm:max=9,build ncurses uidfix
 BUILD_WRKSRC=	${WRKSRC}/simpleperf
 INSTALL_WRKSRC=	${BUILD_WRKSRC}
 TEST_WRKSRC=	${BUILD_WRKSRC}
 MAKEFILE=	${FILESDIR}/Makefile
-MAKE_ENV=	BINDIR="${PREFIX}/bin" LLVM_CONFIG="llvm-config${LLVM_DEFAULT}"
+MAKE_ENV=	BINDIR="${PREFIX}/bin" LLVM_CONFIG=${LLVM_CONFIG}
 ALL_TARGET=	all
 TEST_TARGET=	test
 LDFLAGS+=	-Wl,--as-needed # avoid overlinking (llvm deps)