[ARM] pxa: fix trizeps defconfig

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/configs/trizeps4_defconfig

@@ -147,6 +147,7 @@ CONFIG_ARCH_PXA=y
 # CONFIG_MACH_MAINSTONE is not set
 # CONFIG_ARCH_PXA_IDP is not set
 # CONFIG_PXA_SHARPSL is not set
+CONFIG_TRIZEPS_PXA=y
 CONFIG_MACH_TRIZEPS4=y
 CONFIG_MACH_TRIZEPS4_CONXS=y
 # CONFIG_MACH_TRIZEPS4_ANY is not set