mmc: Enable eMMC unit-tests

Enable the compilation of eMMC4.5 unit-tests, required by APT team.
This will allow the APT team to test the storage activity on released
builds.
The storage tests are disabled in normal operation and in order to
activate them a test I/O scheduler should be chosen and the test should
be triggered via debugfs. Therefore they have no effect on normal eMMC
driver operation.

Change-Id: I0f48827f5b0e5d2608895fd2e8c62a5cf3f56dd9
Signed-off-by: Lee Susman <lsusman@codeaurora.org>
diff --git a/arch/arm/configs/msm8960_defconfig b/arch/arm/configs/msm8960_defconfig
index c88539b..e54459d 100644
--- a/arch/arm/configs/msm8960_defconfig
+++ b/arch/arm/configs/msm8960_defconfig
@@ -456,6 +456,8 @@
 CONFIG_MMC_MSM_SDC3_SUPPORT=y
 CONFIG_MMC_MSM_SDC3_WP_SUPPORT=y
 CONFIG_MMC_MSM_SPS_SUPPORT=y
+CONFIG_IOSCHED_TEST=y
+CONFIG_MMC_BLOCK_TEST=y
 CONFIG_LEDS_PM8XXX=y
 CONFIG_LEDS_TRIGGERS=y
 CONFIG_LEDS_TRIGGER_HEARTBEAT=y