smccc: Fix checkpatch error in header file

Change-Id: Ice141dcc17f504025f922acace94d98f84acba9e
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

include/lib/smccc.h

@@ -14,8 +14,10 @@
 #define SMCCC_VERSION_MINOR_SHIFT	U(0)
 #define SMCCC_VERSION_MINOR_MASK	U(0xFFFF)
 #define MAKE_SMCCC_VERSION(_major, _minor) \
-	( (((uint32_t)(_major) & SMCCC_VERSION_MAJOR_MASK) << SMCCC_VERSION_MAJOR_SHIFT) \
-	| (((uint32_t)(_minor) & SMCCC_VERSION_MINOR_MASK) << SMCCC_VERSION_MINOR_SHIFT))
+	((((uint32_t)(_major) & SMCCC_VERSION_MAJOR_MASK) << \
+						SMCCC_VERSION_MAJOR_SHIFT) \
+	| (((uint32_t)(_minor) & SMCCC_VERSION_MINOR_MASK) << \
+						SMCCC_VERSION_MINOR_SHIFT))
 
 #if SMCCC_MAJOR_VERSION == 1
 # define SMCCC_MINOR_VERSION U(1)