Adding S32 support to CLPixelWiseMultiplication

Partially resolves : COMPMID-3793

Signed-off-by: Suhail Munshi <MohammedSuhail.Munshi@arm.com>
Change-Id: Id82e00c784f0a039017fd896f11671bdda2dd4ab
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5530
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/gpu/cl/kernels/ClMulKernel.h b/src/core/gpu/cl/kernels/ClMulKernel.h
index e2e54a8..44162f3 100644
--- a/src/core/gpu/cl/kernels/ClMulKernel.h
+++ b/src/core/gpu/cl/kernels/ClMulKernel.h
@@ -50,6 +50,7 @@
      *   - (U8,S16)                        -> S16
      *   - (S16,U8)                        -> S16
      *   - (S16,S16)                       -> S16
+     *   - (S32,S32)                       -> S32
      *   - (F16,F16)                       -> F16
      *   - (F32,F32)                       -> F32
      *   - (QASYMM8,QASYMM8)               -> QASYMM8
@@ -58,9 +59,9 @@
      *   - (QSYMM16,QSYMM16)               -> S32
      *
      * @param[in]  compile_context The compile context to be used.
-     * @param[in]  src1            An src tensor info. Data types supported: U8/QASYMM8/QASYMM8_SIGNED/S16/QSYMM16/F16/F32.
-     * @param[in]  src2            An src tensor info. Data types supported: U8/QASYMM8/QASYMM8_SIGNED/S16/QSYMM16/F16/F32.
-     * @param[out] dst             The dst tensor info. Data types supported: U8/QASYMM8/QASYMM8_SIGNED/S16/QSYMM16/F16/F32.
+     * @param[in]  src1            An src tensor info. Data types supported: U8/QASYMM8/QASYMM8_SIGNED/S16/QSYMM16/F16/F32/S32
+     * @param[in]  src2            An src tensor info. Data types supported: U8/QASYMM8/QASYMM8_SIGNED/S16/QSYMM16/F16/F32/S32
+     * @param[out] dst             The dst tensor info. Data types supported: U8/QASYMM8/QASYMM8_SIGNED/S16/QSYMM16/F16/F32/S32
      * @param[in]  scale           Scale to apply after multiplication.
      *                             Scale must be positive and its value must be either 1/255 or 1/2^n where n is between 0 and 15.
      * @param[in]  overflow_policy Overflow policy. Supported overflow policies: Wrap, Saturate