Fix cross compile via cargo-zigbuild (#2116)

cargo-zigbuild sets CMAKE_SYSTEM_PROCESSOR to armv7 when building for
Rust targets matching `armv7-unknown-linux-*`

Author: penberg

libsql-ffi/bundled/SQLite3MultipleCiphers/CMakeLists.txt

@@ -280,6 +280,7 @@ if (CMAKE_SYSTEM_NAME STREQUAL "Linux"
   # this instruction set.
   if (CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64"
       OR CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64"
+      OR CMAKE_SYSTEM_PROCESSOR STREQUAL "armv7"
       OR CMAKE_SYSTEM_PROCESSOR STREQUAL "arm")
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
@@ -301,6 +302,7 @@ else()
   if (CMAKE_C_COMPILER_ID STREQUAL "GNU" AND NOT (
       CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64"
       OR CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64"
+      OR CMAKE_SYSTEM_PROCESSOR STREQUAL "armv7"
       OR CMAKE_SYSTEM_PROCESSOR STREQUAL "arm"
   ))
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -msse4.2 -maes")
@@ -312,6 +314,7 @@ endif()
 if (CMAKE_C_COMPILER_ID STREQUAL "Clang" AND NOT (
       CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64"
       OR CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64"
+      OR CMAKE_SYSTEM_PROCESSOR STREQUAL "armv7"
       OR CMAKE_SYSTEM_PROCESSOR STREQUAL "arm"
       OR CMAKE_ANDROID_ARCH_ABI STREQUAL "arm64-v8a"
       OR CMAKE_ANDROID_ARCH_ABI STREQUAL "armeabi-v7a"