interconnect: qcom: Fix the link error on 32bit architecture

Update the bcm_div function to use do_div() to prevent compiler
from generating undefined reference to `__aeabi_uldivmod' warnings
on 32bit architecture.

Change-Id: Iba37b5f286e76b0ce903b6e0e0344e9659b0004f
Signed-off-by: Naveen Yadav <naveenky@codeaurora.org>

drivers/interconnect/qcom/bcm-voter.c

@@ -61,7 +61,9 @@ static u64 bcm_div(u64 num, u64 base)
 	if (num && num < base)
 		return 1;
 
-	return num / base;
+	do_div(num, base);
+
+	return num;
 }
 
 static void bcm_aggregate(struct qcom_icc_bcm *bcm, bool init)