ima: fix Kconfig dependencies

Fix the following build warning:
warning: (IMA) selects TCG_TPM which has unmet direct dependencies
(HAS_IOMEM && EXPERIMENTAL)

Suggested-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>

drivers/char/tpm/Kconfig

@@ -5,7 +5,6 @@
 menuconfig TCG_TPM
 	tristate "TPM Hardware Support"
 	depends on HAS_IOMEM
-	depends on EXPERIMENTAL
 	select SECURITYFS
 	---help---
 	  If you have a TPM security chip in your system, which

security/integrity/ima/Kconfig

@@ -9,7 +9,7 @@ config IMA
 	select CRYPTO_HMAC
 	select CRYPTO_MD5
 	select CRYPTO_SHA1
-	select TCG_TPM if !S390 && !UML
+	select TCG_TPM if HAS_IOMEM && !UML
 	select TCG_TIS if TCG_TPM
 	help
 	  The Trusted Computing Group(TCG) runtime Integrity