SPM: Modify codes to pass CI CheckPatch

Following errors/warnings are resolved:
  C99_COMMENTS: do not use C99 // comments
  CONSTANT_COMPARISON: Comparisons should place the constant on the right side
  FUNCTION_WITHOUT_ARGS: Bad function definition
  LINE_CONTINUATIONS: Avoid unnecessary line continuations
  LINE_SPACING: Missing a blank line after declarations
  LONG_LINE: line length exceeds 100 columns
  PREFER_ALIGNED: __aligned(x) is preferred over __attribute__((aligned(x)))
  PREFER_SECTION: __section(x) is preferred over __attribute__((section(x)))
  SPACING: space prohibited between function name and open parenthesis '('
  SPACING: spaces required around that '='
  TYPO_SPELLING: words misspelled

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: I0ceefff582c7b70ea86b7080f763c931b758849e
diff --git a/secure_fw/spm/cmsis_psa/spm_ipc.c b/secure_fw/spm/cmsis_psa/spm_ipc.c
index ed3fe0d..d8d9060 100644
--- a/secure_fw/spm/cmsis_psa/spm_ipc.c
+++ b/secure_fw/spm/cmsis_psa/spm_ipc.c
@@ -202,7 +202,7 @@
 }
 
 /**
- * \brief                   Get reverse handle value from connection hanlde.
+ * \brief                   Get reverse handle value from connection handle.
  *
  * \param[in] service       Target service context pointer
  * \param[in] conn_handle   Connection handle created by
@@ -211,7 +211,7 @@
  * \retval void *           Success
  * \retval "Does not return"  Panic for those:
  *                              service pointer are NULL
- *                              hanlde is \ref PSA_NULL_HANDLE
+ *                              handle is \ref PSA_NULL_HANDLE
  *                              handle node does not be found
  */
 static void *tfm_spm_get_rhandle(struct service_t *service,
@@ -965,7 +965,7 @@
                           TFM_STACK_SEALED_SIZE;
 
         if (is_stack_alloc_fp_space(exc_return)) {
-#if defined (__FPU_USED) && (__FPU_USED == 1U)
+#if defined(__FPU_USED) && (__FPU_USED == 1U)
             if (FPU->FPCCR & FPU_FPCCR_TS_Msk) {
                 stacked_ctx_pos += TFM_ADDTIONAL_FP_CONTEXT_WORDS *
                                    sizeof(uint32_t);