qt, php: selecting mysql requires depending on MMU

The mysql_client package is only available on architectures having a
MMU, so all packages that are selecting mysql_client should depend on
BR2_USE_MMU.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/php/Config.ext

@@ -105,6 +105,7 @@ config BR2_PACKAGE_PHP_EXT_SQLITE_UTF8
 config BR2_PACKAGE_PHP_EXT_MYSQL
 	bool "Mysql"
 	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_USE_MMU # mysql
 	select BR2_PACKAGE_MYSQL_CLIENT
 	help
 	  MySQL support
@@ -112,6 +113,7 @@ config BR2_PACKAGE_PHP_EXT_MYSQL
 config BR2_PACKAGE_PHP_EXT_MYSQLI
 	bool "Mysqli"
 	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_USE_MMU # mysql
 	select BR2_PACKAGE_MYSQL_CLIENT
 	select BR2_PACKAGE_PHP_EXT_MYSQL
 	help
@@ -127,6 +129,7 @@ if BR2_PACKAGE_PHP_EXT_PDO
 config BR2_PACKAGE_PHP_EXT_PDO_MYSQL
 	bool "MySQL"
 	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_USE_MMU # mysql
 	select BR2_PACKAGE_MYSQL_CLIENT
 	help
 	  PDO driver for MySQL

package/qt/Config.sql.in

@@ -9,6 +9,7 @@ config BR2_PACKAGE_QT_MYSQL
 	select BR2_PACKAGE_MYSQL_CLIENT
 	select BR2_PACKAGE_NCURSES
 	select BR2_PACKAGE_READLINE
+	depends on BR2_USE_MMU # mysql
 	help
 	  Build MySQL driver
 	  If unsure, say n.