selftests/powerpc: Fix remaining fallout from recent changes

In benchmarks we need to use $(TEST_GEN_PROGS) after we include lib.mk,
because lib.mk does the substitution to add $(OUTPUT).

In math the vmx and fpu names were typoed so they no longer matched
correctly, put back the 'v' and 'f'.

In tm we need to substitute $(OUTPUT) into SIGNAL_CONTEXT_CHK_TESTS so
that the rule matches.

In pmu there is an extraneous ':' on the end of $$BUILD_TARGET for the
clean and install rules, which breaks the logic in the child Makefiles.

Fixes: a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
diff --git a/tools/testing/selftests/powerpc/benchmarks/Makefile b/tools/testing/selftests/powerpc/benchmarks/Makefile
index 286c6ed..fb96a89 100644
--- a/tools/testing/selftests/powerpc/benchmarks/Makefile
+++ b/tools/testing/selftests/powerpc/benchmarks/Makefile
@@ -2,10 +2,10 @@
 
 CFLAGS += -O2
 
-$(TEST_GEN_PROGS): ../harness.c
-
 include ../../lib.mk
 
+$(TEST_GEN_PROGS): ../harness.c
+
 $(OUTPUT)/context_switch: ../utils.c
 $(OUTPUT)/context_switch: CFLAGS += -maltivec -mvsx -mabi=altivec
 $(OUTPUT)/context_switch: LDLIBS += -lpthread
diff --git a/tools/testing/selftests/powerpc/math/Makefile b/tools/testing/selftests/powerpc/math/Makefile
index da9f42f..fa8bae9 100644
--- a/tools/testing/selftests/powerpc/math/Makefile
+++ b/tools/testing/selftests/powerpc/math/Makefile
@@ -5,13 +5,13 @@
 $(TEST_GEN_PROGS): ../harness.c
 $(TEST_GEN_PROGS): CFLAGS += -O2 -g -pthread -m64 -maltivec
 
-$(OUTPUT)/pu_syscall: fpu_asm.S
-$(OUTPUT)/pu_preempt: fpu_asm.S
-$(OUTPUT)/pu_signal:  fpu_asm.S
+$(OUTPUT)/fpu_syscall: fpu_asm.S
+$(OUTPUT)/fpu_preempt: fpu_asm.S
+$(OUTPUT)/fpu_signal:  fpu_asm.S
 
-$(OUTPUT)/mx_syscall: vmx_asm.S
-$(OUTPUT)/mx_preempt: vmx_asm.S
-$(OUTPUT)/mx_signal: vmx_asm.S
+$(OUTPUT)/vmx_syscall: vmx_asm.S
+$(OUTPUT)/vmx_preempt: vmx_asm.S
+$(OUTPUT)/vmx_signal: vmx_asm.S
 
-vsx_preempt: CFLAGS += -mvsx
-vsx_preempt: vsx_asm.S
+$(OUTPUT)/vsx_preempt: CFLAGS += -mvsx
+$(OUTPUT)/vsx_preempt: vsx_asm.S
diff --git a/tools/testing/selftests/powerpc/pmu/Makefile b/tools/testing/selftests/powerpc/pmu/Makefile
index 097b08a..e4e55d1 100644
--- a/tools/testing/selftests/powerpc/pmu/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/Makefile
@@ -31,12 +31,12 @@
 DEFAULT_INSTALL_RULE := $(INSTALL_RULE)
 override define INSTALL_RULE
 	$(DEFAULT_INSTALL_RULE)
-	TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET: -C $$TARGET install
+	TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET install
 endef
 
 clean:
 	$(RM) $(TEST_GEN_PROGS) $(OUTPUT)/loop.o
-	TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET: -C $$TARGET clean
+	TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET clean
 
 ebb:
 	TARGET=$@; BUILD_TARGET=$$OUTPUT/$$TARGET; mkdir -p $$BUILD_TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -k -C $$TARGET all
diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile
index 07da217..5576ee6 100644
--- a/tools/testing/selftests/powerpc/tm/Makefile
+++ b/tools/testing/selftests/powerpc/tm/Makefile
@@ -14,5 +14,6 @@
 $(OUTPUT)/tm-syscall: CFLAGS += -I../../../../../usr/include
 $(OUTPUT)/tm-tmspr: CFLAGS += -pthread
 
+SIGNAL_CONTEXT_CHK_TESTS := $(patsubst %,$(OUTPUT)/%,$(SIGNAL_CONTEXT_CHK_TESTS))
 $(SIGNAL_CONTEXT_CHK_TESTS): tm-signal.S
 $(SIGNAL_CONTEXT_CHK_TESTS): CFLAGS += -mhtm -m64 -mvsx