MAINTAINERS: add some tests directories

Low-hanging fruit...

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

MAINTAINERS

diff --git a/MAINTAINERS b/MAINTAINERS
index 3f371f6..b1d229f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -77,6 +77,7 @@
 S: Maintained
 F: target-alpha/
 F: hw/alpha/
+F: tests/tcg/alpha/
 
 ARM
 M: Peter Maydell <peter.maydell@linaro.org>
@@ -90,6 +91,7 @@
 S: Maintained
 F: target-cris/
 F: hw/cris/
+F: tests/tcg/cris/
 
 LM32
 M: Michael Walle <michael@walle.cc>
@@ -97,6 +99,7 @@
 F: target-lm32/
 F: hw/lm32/
 F: hw/char/lm32_*
+F: tests/tcg/lm32/
 
 M68K
 S: Orphan
@@ -114,6 +117,7 @@
 S: Odd Fixes
 F: target-mips/
 F: hw/mips/
+F: tests/tcg/mips/
 
 Moxie
 M: Anthony Green <green@moxielogic.com>
@@ -125,6 +129,7 @@
 S: Maintained
 F: target-openrisc/
 F: hw/openrisc/
+F: tests/tcg/openrisc/
 
 PowerPC
 M: Alexander Graf <agraf@suse.de>
@@ -172,6 +177,7 @@
 S: Maintained
 F: target-xtensa/
 F: hw/xtensa/
+F: tests/tcg/xtensa/
 
 TriCore
 M: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
@@ -850,6 +856,7 @@
 M: Michael Roth <mdroth@linux.vnet.ibm.com>
 S: Maintained
 F: qapi/
+F: tests/qapi-schema/
 T: git git://repo.or.cz/qemu/qmp-unstable.git queue/qmp
 
 QAPI Schema